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How to use a drill pump

Updated: 2026-10-23

The pump is on the bench, the drill is in the other hand, and the fear is a soaked chuck or a hose that only blows bubbles. How to use a drill pump is a short sequence: fit it before anything is plugged in, follow the arrows on that pump, keep the inlet short and airtight, and switch off as soon as the water stops. Which model to buy stays on the [drill pump comparison](/hub/drilling-and-accessories/drill-pump). Products Compared used maker sheets, including Gardena, Draper and Clarke, plus the Health and Safety Executive's RCD guidance. We did not film a wet test. A qualifying purchase can earn a commission at no extra cost to you.

The pump is on the bench, the drill is in the other hand, and the fear is a soaked chuck or a hose that only blows bubbles.

Our top picks

Gardena Gardena 1490-20 drill pump

Best overall

Gardena Gardena 1490-20 drill pump
9.2/10about £35.12
View offer
ESENO ESENO drill pump

Best value

ESENO ESENO drill pump
8.8/10about £14.95
View offer
Clarke International Clarke CPP3000B drill pump

Alternative

Clarke International Clarke CPP3000B drill pump
8.2/10about £17.42
View offer
On this page
  1. 1.Fit the pump before it is plugged in
  2. 2.Prime, then increase speed
  3. 3.Keep the drill dry
  4. 4.Shaft leaks and a pump that will not start

Fit the pump before it is plugged in

Take the battery out, or leave the plug on the bench, before the shaft goes near the chuck. Gardena's manual says to unplug before fitting. Clarke's leaflet says to fix the drill so it cannot walk into the water. Read the arrows on the body in your hand. Gardena's manual says clockwise to match its arrows. Sealey's TP51.V2 sheet says counter-clockwise. There is no universal direction. ESENO reviews describe anti-clockwise running that produced only air. If your pump has no arrow, use that model's manual rather than a video that says always reverse. Keep the inlet short, reinforced and airtight. Gardena limits the suction hose to about 3 metres. Draper wants the inlet as short as possible. A soft garden hose on the suction side collapses, and a loose clip lets the pump suck air. The outlet must be open. Liquid and suction limits are in the drill pump buying guide.

Prime, then increase speed

Fill the pump and the short suction hose before you pull the trigger, unless that model's sheet says otherwise. Draper says stop if it has not primed in about 10 seconds. Gardena says stop if it has not pumped within about 12 seconds, and stop again when the water finishes. Do not suck the hose to start a siphon. Start slowly, then raise the speed toward the range that listing states. Clarke says do not exceed 3000 rpm and do not run dry. If ten seconds pass and you still have bubbles, stop, reseat the inlet clip, and check the arrow. Clarke's bullets do not say petrol. If the can is petrol, this sequence stops.
Gardena Gardena 1490-20 drill pump

Testsieger

Gardena Gardena 1490-20 drill pump
9.2/10about £35.12
View offer

Keep the drill dry

A corded drill outdoors, or on a wet floor, wants a 30 mA residual-current device. That is the Health and Safety Executive's figure for wet and outdoor work. The RCD sits in the lead or the socket, not in the pump box. It does not stop petrol vapour igniting, which is why fuel stays off this page. A cordless drill removes the mains lead from the puddle. Clarke still says keep the drill dry. Gardena reviews include drills that got very hot. Do not stand in the water, and do not tape the trigger.

Shaft leaks and a pump that will not start

Water from the shaft is a repeated note on the ESENO and the Flintronic in this set. A small weep on a short job may be the seal these plastic bodies often have. A jet from the shaft, or water running into the chuck, is a stop. Switch off, take the battery out or unplug, and do not keep drilling through it. If nothing comes out, work back along the inlet. An air leak, a long hose, the wrong rotation, or a suction hose above the liquid all look like a dead pump. ESENO reviews say the prime fails when the pump sits above the water on an empty hose. Reverse is not the normal direction. Stop for petrol, sewage, a rising flood indoors, a wet drill, and any supply people will drink. Emptying a butt of clear rainwater, once this sequence works, is the drill pump for a water butt page.

Common questions

Which way should the drill turn?
Turn it the way the arrows on that pump show. Gardena's manual says clockwise for the 1490. Sealey's TP51.V2 sheet says counter-clockwise. ESENO reviews found that the wrong way produced only air. If there is no arrow and no manual, do not guess with a dry drill.
Do I have to fill the hose first?
Yes, unless that model's sheet describes a different prime. Fill the pump and the short suction hose, keep every clip airtight, and leave the outlet open. Do not suck the hose by mouth.
How long should I wait before I stop?
Stop at about 10 seconds on the Draper sheet if nothing has primed, and at about 12 seconds on the Gardena manual. Then find the air leak or the arrow. Also stop as soon as the water finishes. Clarke's leaflet says not to run dry.
Do I need an RCD with a cordless drill?
A cordless drill has no mains lead to protect, so the 30 mA device is for a corded drill in the wet or outdoors. You still keep the body out of the water. An RCD does not make either drill safe around petrol vapour.
What if water comes out of the shaft?
Catch it in a bucket and stop if it runs toward the chuck. Shaft weep shows up in ESENO and Flintronic reviews in this set. Water in the drill is a reason to unplug or remove the battery, not a reason to tape the trigger.
Can I tape the trigger and walk away?
No. You need to stop when the stream ends, when the drill heats, or when the shaft weeps. Gardena's manual is not continuous duty.
When should I stop and call someone?
Call someone for petrol, unknown solvents, sewage, a flood that is still rising indoors, a wet or tripping drill, and any water people will drink. A fixed pipe run in a house is not a drill-chuck installation.

Related pages

Best drill pump

Drill pump or electric pump

Drill pump

Drill pump buying guide: liquid, suction and drill

Drill pump for a water butt, not for daily watering

Sources

Public UK sources from the research digest, last checked on 19 October 2026. Shelf prices and star lines are the amazon.co.uk figures in the display file.

  1. HSE: Electrical safety FAQs, including RCDs (retrieved 19 October 2026)
  2. HSE: Electrical equipment at work (retrieved 19 October 2026)
  3. HSE: Fire and explosion, petrol (retrieved 19 October 2026)
  4. Draper 18937 water pump user manual (retrieved 19 October 2026)
  5. Clarke CPP3000B drill powered pump leaflet (retrieved 19 October 2026)
  6. Gardena electric drill pump product page (retrieved 19 October 2026)
  7. Gardena 1490-20 manual (retrieved 19 October 2026)
  8. Consumer Rights Act 2015 (retrieved 19 October 2026)