{"product_id":"site-drainage-pump-kit","title":"Site Drainage Pump Kit | EVAK Drainox 400 \u0026 750","description":"\u003ch2\u003eSite drainage pump kit for excavations, footings and site water\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe workhorse of the range, in two sizes, with the hose already matched to it.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis FPS Engineered™ kit pairs an EVAK Drainox with 20m of 50mm layflat hose and a stainless-steel hose clip. The pump arrives with its own 2 inch hose tail, so the kit connects with nothing else to buy.\u003c\/p\u003e\n\u003cp\u003eThe Drainox is built for arduous site work: a stainless steel strainer base, cover and handle over an FC20 cast iron pump housing, with an abrasion-resistant Hytrel vortex impeller that keeps working in water carrying grit, silt and suspended solids.\u003c\/p\u003e\n\u003cp\u003eChoose the pump to match how high you need to lift the water. That decision is set out below.\u003c\/p\u003e\n\u003cp\u003ePart of our wider \u003ca href=\"https:\/\/floodandwaterpumps.co.uk\/collections\/site-drainage-pumps\"\u003esite drainage\u003c\/a\u003e, \u003ca href=\"https:\/\/floodandwaterpumps.co.uk\/collections\/dewatering-pumps\"\u003edewatering\u003c\/a\u003e and \u003ca href=\"https:\/\/floodandwaterpumps.co.uk\/collections\/evak\"\u003eEVAK\u003c\/a\u003e ranges.\u003c\/p\u003e\n\u003ch3\u003eWhich pump: 400 or 750?\u003c\/h3\u003e\n\u003cdiv style=\"margin: 28px 0; padding: 20px 24px; background: #F0EDE5; border-left: 4px solid #283583; border-radius: 8px;\"\u003e\n\u003cp style=\"margin: 0 0 10px;\"\u003e\u003cstrong\u003eBoth kits are identical apart from the pump. The difference is what happens as the lift increases.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px;\"\u003eEvery centrifugal pump delivers less as it has to push water higher, and each has a point where it effectively maxs out. For the Drainox 400 that arrives at around 8 to 10 metres. The 750 has four more metres of head in reserve, so at the lifts where the 400 is struggling it is still working normally.\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eMeasure from the water surface to the point where your hose will discharge. That figure, is what should decide it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid #E5DED8; border-radius: 10px; margin: 22px 0;\"\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%; font-size: 14px; background: #ffffff;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\" style=\"background: #283583; color: #fbf9f3; text-align: left; padding: 11px 14px; font-weight: 600;\"\u003eUphill lift\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"background: #283583; color: #fbf9f3; text-align: left; padding: 11px 14px; font-weight: 600;\"\u003eDrainox 400\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"background: #283583; color: #fbf9f3; text-align: left; padding: 11px 14px; font-weight: 600;\"\u003eDrainox 750\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"background: #283583; color: #fbf9f3; text-align: left; padding: 11px 14px; font-weight: 600;\"\u003eDifference\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003e2 m\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e190 L\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e257 L\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e35% more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FBF9F3;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003e4 m\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e167 L\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e236 L\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e41% more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003e6 m\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e141 L\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e213 L\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e51% more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FBF9F3;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003e8 m\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e109 L\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e188 L\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e72% more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003e10 m\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e63 L\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e158 L\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003eTwo and a half times\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eChoose the Drainox 400\u003c\/strong\u003e for lifts up to about 6m, which covers most footings, trenches and surface water on a site. It is the better value and it will not be working hard.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose the Drainox 750\u003c\/strong\u003e if you are lifting higher than that, running the discharge a long way as well as up, working a deep excavation or basement dig, or dealing with water arriving faster than the smaller pump can clear it.\u003c\/p\u003e\n\u003ch3\u003eAt a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e190 to 257 litres per minute:\u003c\/strong\u003e Through the 20m of layflat supplied, at a typical 2m lift, depending on the pump chosen.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for site use:\u003c\/strong\u003e Stainless steel outer cover, handle and strainer base over a cast iron pump housing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHytrel vortex impeller:\u003c\/strong\u003e Highly abrasion resistant, which is what grit-laden water demands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic operation:\u003c\/strong\u003e Starts and stops with the water, so it can be left in an excavation working.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFriction almost irrelevant:\u003c\/strong\u003e At 50mm bore the full 20m run costs under 1m of head, so the pump's capability goes into lift rather than the hose.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × EVAK Drainox automatic submersible site drainage pump, 400 or 750 as selected\u003c\/li\u003e\n\u003cli\u003e1 × 2 inch, 50mm hose tail, supplied with the pump\u003c\/li\u003e\n\u003cli\u003e1 × 20 m length of 50mm layflat hose\u003c\/li\u003e\n\u003cli\u003e1 × 40 to 60mm stainless-steel hose clip\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow the kit connects\u003c\/h3\u003e\n\u003cp\u003eThe Drainox has a 2 inch BSP female outlet with the hose tail supplied. Slide the layflat over the tail and tighten the clip. That is the whole assembly.\u003c\/p\u003e\n\u003cp\u003eLay the layflat out before switching on and check it is not doubled back on itself. Layflat firms up under pressure but will hold a kink if it starts folded.\u003c\/p\u003e\n\u003ch3\u003eWhy 20 metres, and why there is no length to choose\u003c\/h3\u003e\n\u003cdiv style=\"margin: 28px 0; padding: 20px 24px; background: #F0EDE5; border-left: 4px solid #283583; border-radius: 8px;\"\u003e\n\u003cp style=\"margin: 0 0 10px;\"\u003e\u003cstrong\u003eBecause at 50 mm bore, hose length barely changes the answer.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px;\"\u003eFriction loss depends heavily on bore. On a narrow hose every extra metre costs real flow, which is why our 19 mm garden kits let you pick a length. At 50mm, doubling the run from 10m to 20m costs around 3 percent, which is inside the margin of error on the figure itself.\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eSo rather than ask you to choose between options that perform the same, we supply the longer one. Running 10m short stops a job. Running 10m long costs nothing you would notice, and 20m gets water clear of an excavation, over a kerb or out to a road gully on most sites.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eExpected performance\u003c\/h3\u003e\n\u003cp\u003eEstimated flow through the supplied 20m of 50mm layflat, discharging freely. Lift is measured from the water surface to the point where the hose discharges.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid #E5DED8; border-radius: 10px; margin: 22px 0;\"\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%; font-size: 14px; background: #ffffff;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\" style=\"background: #283583; color: #fbf9f3; text-align: left; padding: 11px 14px; font-weight: 600;\"\u003eUphill lift\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"background: #283583; color: #fbf9f3; text-align: left; padding: 11px 14px; font-weight: 600;\"\u003eTypical situation\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"background: #283583; color: #fbf9f3; text-align: left; padding: 11px 14px; font-weight: 600;\"\u003eDrainox 400\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"background: #283583; color: #fbf9f3; text-align: left; padding: 11px 14px; font-weight: 600;\"\u003eDrainox 750\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003e2 m\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003eShallow footings, ground level discharge\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e190 L\/min, 11,400 per hour\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e257 L\/min, 15,400 per hour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FBF9F3;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003e4 m\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003eExcavation up to a kerb or gully\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e167 L\/min, 10,000 per hour\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e236 L\/min, 14,200 per hour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003e6 m\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003eDeep excavation or basement slab\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e141 L\/min, 8,500 per hour\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e213 L\/min, 12,800 per hour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FBF9F3;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003e8 m\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003eDeep dig with a high discharge point\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e109 L\/min, 6,500 per hour\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e188 L\/min, 11,300 per hour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003e10 m\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003eAt or near the 400's limit\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e63 L\/min, 3,800 per hour\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e158 L\/min, 9,500 per hour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 13px; color: #6b7280; line-height: 1.6; margin: 10px 0 0;\"\u003e\u003cem\u003eEstimated using the published Drainox curves and Hazen-Williams friction for 50 mm bore. Friction across the full 20 m run is under 1 m of head, so almost all the pump's capability goes into lift rather than being lost in the hose. At 167 litres per minute a 3 m × 2 m excavation holding a metre of water, around 6,000 litres, clears in roughly 36 minutes with the 400 and 25 minutes with the 750. Work out a specific run with our \u003ca href=\"https:\/\/floodandwaterpumps.co.uk\/pages\/hose-pipe-friction-loss-calculator\"\u003epump performance calculator\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical specification\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid #E5DED8; border-radius: 10px; margin: 22px 0;\"\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%; font-size: 14px; background: #ffffff;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\" style=\"background: #283583; color: #fbf9f3; text-align: left; padding: 11px 14px; font-weight: 600;\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"background: #283583; color: #fbf9f3; text-align: left; padding: 11px 14px; font-weight: 600;\"\u003eDrainox 400\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"background: #283583; color: #fbf9f3; text-align: left; padding: 11px 14px; font-weight: 600;\"\u003eDrainox 750\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eMaximum flow\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e225 litres per minute\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e300 litres per minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FBF9F3;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eMaximum head\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e11 metres\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e15 metres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eMotor power\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e400 W, 0.5 HP\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e750 W, 1 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FBF9F3;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eCurrent at 230 V\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e4 A\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e5.4 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e13 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e16 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FBF9F3;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eOperation\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\" colspan=\"2\"\u003eAutomatic, 230V single phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eFree passage\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\" colspan=\"2\"\u003e5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FBF9F3;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eOutlet\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\" colspan=\"2\"\u003e2 inch, 50 mm BSP female, hose tail supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eMotor speed\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\" colspan=\"2\"\u003e2,850 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FBF9F3;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eImpeller\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\" colspan=\"2\"\u003eHytrel vortex, highly abrasion resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\" colspan=\"2\"\u003eStainless steel strainer base, outer cover and handle; FC20 cast iron pump housing; ADC12 alloy motor housing and seal casing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FBF9F3;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eSeals\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\" colspan=\"2\"\u003eDouble mechanical seal in oil chamber, SIC\/SIC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eMotor protection\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\" colspan=\"2\"\u003eAuto-reset thermal protector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eTrenchman or Drainox?\u003c\/h3\u003e\n\u003cp\u003eBoth are EVAK contractor site drainage pumps, the difference is not really flow or head, it is what the pump is built to do.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid #E5DED8; border-radius: 10px; margin: 22px 0;\"\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%; font-size: 14px; background: #ffffff;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\" style=\"background: #283583; color: #fbf9f3; text-align: left; padding: 11px 14px; font-weight: 600;\"\u003e\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"background: #283583; color: #fbf9f3; text-align: left; padding: 11px 14px; font-weight: 600;\"\u003eDrainox\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"background: #283583; color: #fbf9f3; text-align: left; padding: 11px 14px; font-weight: 600;\"\u003eTrenchman\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eBuilt for\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003eLonger-term dewatering and harder-wearing installations\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003eSilty water and settled sediment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FBF9F3;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eAgitator\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003eNo\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003eYes, keeps solids in suspension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eFree passage\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e5 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003e15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FBF9F3;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003eStainless steel vortex\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003eCast iron and alloy, Hytrel-coated impeller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118; font-weight: 600;\"\u003eControl options\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003eManual, automatic or 400 V three phase\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border-top: 1px solid #E5DED8; color: #0c1118;\"\u003eAutomatic only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003ePut simply: \u003cstrong\u003eDrainox where the pump has to stay in. \u003ca href=\"https:\/\/floodandwaterpumps.co.uk\/products\/silty-trench-dewatering-pump-kit\"\u003eTrenchman\u003c\/a\u003e where the silt has to come out.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf the water has settled and gone thick at the bottom, a Drainox will pump the clear water off the top and leave the silt behind. That is the job the Trenchman kit exists for.\u003c\/p\u003e\n\u003ch3\u003eWhat can I use it for?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConstruction site drainage and dewatering\u003c\/li\u003e\n\u003cli\u003eCivil engineering, mining and tunnelling\u003c\/li\u003e\n\u003cli\u003ePumping out excavations, trenches and flooded areas\u003c\/li\u003e\n\u003cli\u003ePublic works and contractor hire fleets\u003c\/li\u003e\n\u003cli\u003eFlood response and emergency dewatering\u003c\/li\u003e\n\u003cli\u003eLong-term dewatering where abrasive water is involved\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation and use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSet the pump on a firm level base at the lowest point, clear of loose silt and debris.\u003c\/li\u003e\n\u003cli\u003eRun the hose to an approved discharge point and avoid tight bends, which restrict flow more than length does.\u003c\/li\u003e\n\u003cli\u003eKeep the plug and connections dry and above any possible water level, and never lift the pump by its cable.\u003c\/li\u003e\n\u003cli\u003eCheck the intake and discharge periodically. A pump nobody inspects is not reliable protection.\u003c\/li\u003e\n\u003cli\u003eFlush through with clean water at the end of an abrasive job.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWater quality limits\u003c\/h3\u003e\n\u003cdiv style=\"margin: 26px 0; padding: 18px 22px; background: #FBF9F3; border: 1px solid #E5DED8; border-left: 4px solid #E8542B; border-radius: 8px;\"\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cstrong\u003eClean and dirty water, solids to 5 mm.\u003c\/strong\u003e The Drainox handles the grit and sand that comes with site water, but it is not a solids-handling or sewage pump. Not for foul water, sewage or salt water. Where the water carries settled silt and fines, use a pump with an agitator instead.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003ch4\u003eShould I choose the 400 or the 750?\u003c\/h4\u003e\n\u003cp\u003eThe 400 if you are lifting up to about 6m, which covers most site work, because it is better value and will not be straining. The 750 if you are lifting higher, running a long discharge as well as a high one, or if water arrives faster than the 400 clears it. At 10 m of lift the 750 moves two and a half times as much.\u003c\/p\u003e\n\u003ch4\u003eIs the kit the same apart from the pump?\u003c\/h4\u003e\n\u003cp\u003eYes. Both come with 20m of 50mm layflat hose and a stainless-steel clip, and both pumps supply their own 2 inch hose tail. Only the pump changes.\u003c\/p\u003e\n\u003ch4\u003eDrainox or Trenchman?\u003c\/h4\u003e\n\u003cp\u003eDrainox for a stainless steel vortex pump suited to longer-term dewatering and harder-wearing installations. \u003ca href=\"https:\/\/floodandwaterpumps.co.uk\/products\/silty-trench-dewatering-pump-kit?_pos=2\u0026amp;_psq=tren\u0026amp;_psid=87fc783c7\u0026amp;_ss=e\" title=\"Silty Trench Dewatering Pump Kit | EVAK Trenchman 400\"\u003eTrenchman\u003c\/a\u003e where the water is silty and sediment settles, because its built-in agitator keeps solids in suspension and it passes 15 mm rather than 5 mm.\u003c\/p\u003e\n\u003ch4\u003eDo I need to buy a hose tail?\u003c\/h4\u003e\n\u003cp\u003eNo. The Drainox comes with its own 2 inch hose tail, so the layflat goes straight on with the supplied clip.\u003c\/p\u003e\n\u003ch4\u003eWhy is there no choice of hose length?\u003c\/h4\u003e\n\u003cp\u003eBecause at 50mm bore it would not change anything. Doubling from 10m to 20m costs around 3 percent of the flow, which is smaller than the margin of error on the estimate, so we supply the longer one.\u003c\/p\u003e\n\u003ch4\u003eWill it clear a floor completely?\u003c\/h4\u003e\n\u003cp\u003eNo, and it is not meant to. A drainage pump needs a working depth of water and leaves a layer behind. For taking a floor down to a millimetre or two you want a residue or \u003ca href=\"https:\/\/floodandwaterpumps.co.uk\/collections\/puddle-pumps\"\u003epuddle pump\u003c\/a\u003e, such as the EVAK Residox.\u003c\/p\u003e\n\u003ch4\u003eCan I leave it in an excavation?\u003c\/h4\u003e\n\u003cp\u003eYes, that is what automatic operation is for. Keep the pump clear of loose silt, use an RCD-protected supply, and keep the plug dry and above any possible water level.\u003c\/p\u003e\n\u003ch4\u003eAre 110 V or three-phase versions available?\u003c\/h4\u003e\n\u003cp\u003eYes. The Drainox range includes 110 V in manual or automatic and 400 V three phase in manual. \u003c\/p\u003e","brand":"FPS Engineered™","offers":[{"title":"Drainox 400","offer_id":56375328342395,"sku":"DRAINOX-KIT-SITE-1-400","price":366.24,"currency_code":"GBP","in_stock":true},{"title":"Drainox 750","offer_id":56375328375163,"sku":"DRAINOX-KIT-SITE-1-750","price":446.24,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0845\/0857\/4015\/files\/Site_Drainage_Pump_Kit_EVAK_Drainox_400_750.jpg?v=1786960845","url":"https:\/\/floodandwaterpumps.co.uk\/products\/site-drainage-pump-kit","provider":"Flood \u0026 Water Pumps","version":"1.0","type":"link"}