FREE DELIVERY OVER £50
CLICK & COLLECT
Screwfix Gift Cards a perfect gift
SERVICE UPDATES

Stores open as normal - Delivery 24-48 hours

Karcher SP3 350W Dirty Water Pump (4181K)

£ 62.99INC VAT

Add to basket for...

Check stock in your local store

Karcher SP3 350W Dirty Water Pump (4181K)

Due to hygiene reasons this product is excluded from our 30 Day Money Back Guarantee (your statutory rights are not affected).

The submersible dirty water pump has a motor housed with a ceramic slide ring and oil chamber for longevity and has a capacity of up to 166.67Ltr/min. Pumps water with dirt particles up to 20mm in size and has an optional pre-filter to protect the pump impeller from larger dirt particles. A float switch which turns the pump on and off according to water level, protecting it from dry running. Fixed to a rail, the float switch can be adjusted vertically to enable water to be pumped out at a lower level, down to a residual water level of 25mm. Quick and easy connection of 1¼" hoses assured with Quick Connect connection thread. Not suitable for continuous use in fish ponds.

  • Pumps up to 167Ltr/min
  • Max. Head Height
  • Float Switch
  • 2 Year Manufacturer's Guarantee (T&Cs Apply)
  • Motor Sealed with Robust Slide Ring
  • Convenient Carry Handle
  • Uses G1 Thread Connection

More Info

View all: Karcher Water Pumps

£62.99INC VAT

Add to basket for...

Check stock in your local store

Karcher SP3 350W Dirty Water Pump is rated 4.3 out of 5 by 6.
  • y_2020, m_10, d_21, h_16
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_1, tr_5
  • loc_en_GB, sid_4181K, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 13ms
  • REVIEWS, PRODUCT

Add to saved list...

Save
Rated 5 out of 5 by from KARCHER SP3 350W It is a great pump...I have noticed the buoy will not trigger the pump to kick in. You have to basically tie it up vertically then the pump starts up.
Date published: 2020-07-14
Rated 5 out of 5 by from Great Dirty Pump Great item it empties my pool really fast much quicker than other pumps I have owned and really fast delivery
Date published: 2018-12-12
Rated 5 out of 5 by from KARCHER DIRTY WATER PUMP I have two of these pumps never given any problem 10 out of
Date published: 2018-05-27
Rated 5 out of 5 by from Does what it says ! Bought this to empty lazy spa ,work's great. Would definitely recommend
Date published: 2017-03-19
  • y_2020, m_10, d_21, h_16
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_1, tr_5
  • loc_en_GB, sid_4181K, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 111ms
  • REVIEWS, PRODUCT

Variable speed?

I intend to use two of these in two 1000ltr water butts to water the garden, if I connect them via a dimmer switch will I be able to control the speed at which the pump runs to reduce the flow rate. The hose I’ll be using is in excess of 30M long.
Asked by: Jimsajaffa
Hello Jimsajaffa. Unfortunately the SP3 pump does not have an adjustable flow rate and is also not suitable for continuous use - Kärcher UK
Answered by: Kärcher UK
Date published: 2020-10-19

Does this pump have a non-return valve built into it, or do I need to include one within the discharge pipework?

Asked by: JeffersonX
Hello JeffersonX. The Karcher SP3 does not have a non-return valve - Kärcher UK
Answered by: Kärcher UK
Date published: 2020-09-28

How many starts per hour can the switch handle?

My garden needs land drains draining to a sump. I need to know the maximum permitted starts per hour to size the little sump.
Asked by: JeffersonX

Does the pump come with the Hose pipe?

Asked by: Yinka1
Hello Yinka1, the hose pipe is not included with this pump and needs to be purchased separately. Thanks, Kärcher UK.
Answered by: Kärcher UK
Date published: 2020-09-10

Can this fit to garden hose

Are any adaptors required?
Asked by: NeillyS
Hello NeillyS, we would recommend using a flat hose to allow better water flow from the pump. However it is possible to use a pump adapter that allows a normal rigid garden hose to be used with the pump. Thanks, Kärcher UK.
Answered by: Kärcher UK
Date published: 2020-07-09
  • y_2020, m_10, d_21, h_16CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_17
  • loc_en_GB, sid_4181K, prod, sort_[SortEntry(order=LOCALE, direction=DESCENDING), SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 121ms
  • QUESTIONS, PRODUCT
  • bvseo-msg: BV SEO Content for this product did not include verbose reviews.;
Specification
Brand Karcher
Brand Karcher
Cable Length 10 m
Hose Connection Type Thread
Hose Diameter (Imperial) 1 "
Manufacturer Guarantee 2 Year Manufacturer's Guarantee (T&Cs Apply)
Max. Particle Allowance 20 mm
Max. Pump Flow Rate 167 Ltr/min
Model Name/No SP3
Model No SP3
Pack Size 1
Pieces in Pack/Case 1
Power Output (Watts/Kw) 350 W
Power Voltage Supply 240 V
Product Depth 229 mm
Product Depth 229 mm
Product Height 303 mm
Product Returns Note Due to hygiene reasons this product is excluded from our 30 Day Money Back Guarantee (your statutory rights are not affected).
Product Type Dirty Water Pump
Product Width 238 mm
Supplier Manufacturer Helpline 01295 752000
Switch Type Float Switch
Total Product Weight 4.2 kg

Product contents

SP3 pump, G1 hose connection, float switch and 10m cable.