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Best Einhell dirty water pump

Updated: 22 October 2026

You want one amazon.co.uk listing for one job, and a reason to leave the other eleven. The best Einhell dirty water pump in this set is not the highest star rating and not the largest litres-per-hour claim. Those two signals point at different machines. Name the water first. The [comparison table](/hub/garden-watering/einhell-dirty-water-pump) holds every row. Peter F. read the UK listings captured on 19 October 2026, Einhell UK pages and the review themes in those files. This is not a lab ranking and not a claim to be the best pump in Britain. A qualifying purchase can earn a commission at no extra cost to you.

You want one amazon.co.uk listing for one job, and a reason to leave the other eleven. The best Einhell dirty water pump in this set is not the highest star rating and not the largest litres-per-hour claim.

Our top picks

Einhell Einhell GE-DP 18/25 LL Li

Best overall

Einhell Einhell GE-DP 18/25 LL Li
8.3/10about £89.99
View offer
Einhell Einhell GC-DP 3325

Best value

Einhell Einhell GC-DP 3325
8.2/10about £37.97
View offer
Einhell Einhell GC-DP 7835

Rank 3

Einhell Einhell GC-DP 7835
8.4/10about £50.50
View offer
On this page
  1. 1.A modest mains pump for a tub or a butt
  2. 2.A 35 mm mains pump when the water is dirty
  3. 3.Cordless only when the volume is small
  4. 4.Skip these for a cellar

A modest mains pump for a tub or a butt

For a cooled hot tub or a water butt, with a 230 V socket nearby, the GC-DP 3325 matches the volume without pretending to be a site pump. It is £37.97, 330 W, 9,500 L/h, 6 m head and 25 mm solids, with 4.4 from 1,050 reviews. The hose is extra. Reviews say the last 20–30 mm stays. The listing also prints 120 V, while Einhell’s family data is 230 V, so check the plate. If the water is muddier than a cooled spa, 25 mm is the wrong passage. Those tests are on the buying guide.

A 35 mm mains pump when the water is dirty

When the water is muddy and you have a few metres of lift, check the GC-DP 7835 first. It is £50.50, 780 W, 15,700 L/h, 8 m and 35 mm, with 4.2 from 10,114 reviews. The flow figure is not the flow at 8 m. The GC-DP 9035 N, at £70.99, adds stainless, 9 m and 35 mm. If the slab must end nearly dry, the GE-DP 7035 LL at £68.98 claims 1 mm on a hard, level base.
Einhell Einhell GE-DP 18/25 LL Li

Testsieger

Einhell Einhell GE-DP 18/25 LL Li
8.3/10about £89.99
View offer

Cordless only when the volume is small

Cordless belongs on the shortlist only when there is no safe socket, the job is a tub or a small chamber, and you already own Power X-Change packs. The GE-DP 18/25 LL Li Solo is £89.99, about 7,000 L/h, 5 m, 25 mm and a 1 mm residual claim on clear water, with 4.6 from 180 reviews. Battery and charger are not in the box. The non-flat GE-DP 18/25 Li Solo is £99.98, still 5 m and about 0.5 bar. The higher price is a different suction behaviour, not a cellar pump. The rest of that trade-off is on mains versus cordless.

Skip these for a cellar

The TPDL at £25.99 weighs about 200 g, prints both 12 V and Einhell 18 V, and describes no float. The BTRUI beside it is about 600 g and 30 L/min. Both are transfer toys, not a room of floodwater. The stainless FOTING at £62.99 claims 13,000 L/h, but the particle line is 5 mm. The FOTING at £56.99 claims 28,000 L/h. Treat that flow as an unverified title. If the water is around the consumer unit, or it returns every winter, read the basement page.

Common questions

Which Einhell for a cooled hot tub?
The GC-DP 3325 at £37.97, if a 230 V RCD socket is there and the water is under 35 °C. It passes 25 mm and reviewers still see the last 20–30 mm left behind. Check the 120 V line against the plate. If you have no socket and you already own Power X-Change batteries, the GE-DP 18/25 LL Li body is the alternative, and you still need a hose.
Which pump if the water is muddy?
Use a 35 mm mains pump and check the lift. The GC-DP 7835 at £50.50 publishes 35 mm and 8 m, with the long review record in this set, provided the plug is a UK three-pin. The 15,700 L/h figure is not the flow at full head. The GC-DP 9035 N adds stainless and 9 m at £70.99. Skip the 5 mm stainless FOTING for mud.
Does a 4.2 from 10,000 reviews beat a 4.6 from 180?
They are not the same test. The GC-DP 7835 at 4.2 from 10,114 reviews is a mains pump with a long UK record, including plug complaints. The 4.6 from 180 reviews is the cordless LL body, a smaller sample on a pump that needs batteries you buy separately. Use stars as a record of use. Use particle size, head and the socket to choose.
Why not buy the cheapest 900 W?
The £46.99 FOTING is 900 W, with 4.2 from 2,607 reviews that include tripping breakers and early failures. Watts do not tell you the working flow at the top of a hose. The £56.99 file that claims 28,000 L/h is a thinner record and an unpublished curve. If you want 35 mm and a documented 8 m head, the GC-DP 7835 is the clearer mains buy once the plug is right.
What must I still buy on the day?
A hose, clips and a legal place to discharge. The Einhell boxes that list contents include a pump and an adapter, not a hose. Cordless Solo prices exclude the battery and the charger. A mains pump still needs a BS 1363 plug and 30 mA RCD protection. If the parcel has a two-pin plug, return it rather than adapting it on the driveway.

Related pages

How to use a dirty water pump

Einhell dirty water pump

Pump out a flooded basement in the UK: when to stop

Einhell dirty water pump guide: particle size first

Cordless dirty water pump vs mains: what Solo misses

Sources

Public UK sources used for RCD protection, product safety marking and flood pumping limits. Manufacturer pages used for head, flow, particle size and the 35 °C limit. Listing prices, stars and review counts are the amazon.co.uk lines saved on 19 October 2026. This is not a lab test.

  1. Einhell UK — dirty water pumps (retrieved 19.10.2026)
  2. Einhell UK — GC-DP 7835 (retrieved 19.10.2026)
  3. Einhell UK — GE-DP 18/25 Li Solo (retrieved 19.10.2026)
  4. Einhell UK — GE-DP 18/25 LL Li Solo (retrieved 19.10.2026)
  5. Toolstation — Einhell GC-DP 7835 (retrieved 19.10.2026)
  6. Electrical Safety First — garden electrics (retrieved 19.10.2026)
  7. IET Wiring Matters — BS 7671 411.3.3 (retrieved 19.10.2026)
  8. GOV.UK — Electrical Equipment (Safety) Regulations 2016 (retrieved 19.10.2026)
  9. GOV.UK — adapting a home to flooding (retrieved 19.10.2026)