03330 112 112
Cookie Reports - Screwfix Cookie Policy

View product video for BWT SF10M Compact Metered Water Softener 10Ltr

BWT SF10M Compact Metered Water Softener 10Ltr

Product Code: 45059

Compact, metered water softener removes hardness from incoming water supply. Ideal for installations where space can be an issue. Developed for UK plumbing systems. Suitable for 1 to 4 people.

Product contents:
Water softener, transformer and 15mm fitting kit (inlet/outlet hoses, inlet/outlet valves and bypass valve).

H x W x D: 532 x 270 x 480mm. Low voltage. Max. peak flow rate: 30Ltr/min. Max. continuous flow rate: 25Ltr/min. Basic flow rate at 1bar pressure loss: 10Ltr. Max. pressure: 5bar. Min. pressure: 1.7 bar. Inlet/outlet connections: ¾" BSP. Drain connection tube: ½". Max. softened water at 300ppm: 1280Ltr.

Download more information...

BWT SF10M Compact Metered Water Softener 10Ltr Instruction Manual



Add to saved list

Available for deliveryNext Day Delivery
Available for collection from store Store Collection Check stock in your store
Page 1 of 4
Page 1 of 4
Rated 5 out of 5 Fabulous little softener We opted for a smaller water softener due to lack of cupboard space in the kitchen so thought we'd give this one a try and were certainly not disappointed. The quality of the unit is very good, unlike some flimsy plastic ones of a similar price. Being a metered unit means that it's economical to run (It's been installed for around 5 months and we're still on the same bag of salt). We tested the softness of the water following installation (using the supplied kit) and the softness was spot on - despite the hardness of the water in our area. We also have a 3 toilets (WC, ensuite and main bathroom) and even though this is small it is more than adequate to supply water around the house, as well as the dishwasher and washing machines working simultaneously. We didn't install the softener ourselves, rather getting a local water softener company in (who usually supply the £0000 units) and he had no grumbles with any of the fittings etc. 11 Nov 2015
Rated 3 out of 5 by Early days yet I installed the water softener myself, in an under-stairs cupboard where the incoming water main is located. Installation was straightforward apart from a couple of issues: firstly the 15mm kit contained the wrong valves - inline valves were supplied instead of T-valves and I had to go and purchase a couple of 15mm Tees. Secondly there is a mistake in the installation instructions, where item 9 reads "Check that the Brine Cabinet contains salt and water". I had to telephone the manufacturer's technical helpline and they advised that this is a misprint and in fact the brine cabinet should only contain salt at this stage. My final problem was that this model is designed to work with tablet salt, not block salt, however Screwfix only stock the latter and so that is what I ordered, not knowing at that stage that there is an important difference. The softener itself is not supplied with any salt and Screwfix should probably make this clear in their description, along with advice as to what type of salt is required. My three star ratings for performance and reliability should be ignored, as it is too early to judge these criteria at the moment. I will update this review after using the product for a month or so. 19 Oct 2015
Rated 4 out of 5 by Easy D.I.Y. install. Website details were accurate. As stated, it is very compact and should fit many under-sink cupboards. It comes with a useful set of connectors and the hardness test kit needed to set it up. Installation was a straightforward D.I.Y. task. Being a metered unit, it should prove more economical than unmetered softeners. Flexible hoses supplied would enable it to be connected and then pushed right back in to its planned location, except that the overflow is conventional rigid overflow pipe. I strongly recommend reading the full online manual in advance of D.I.Y. installation as there are several points to consider:, including the fully loaded weight; the need to check the water pressure before installation; and the positions of the overflow and drain. The great majority of the construction is in plastic, so corrosion should be minimised. I can't comment long term reliability information as yet, and it is noticeable that the manufacturer only offers a 1-year warranty on this model 26 Jul 2013
  • 2016-02-06 T05:54:01.594-06:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_3, tr_3
  • loc_en_US, sid_45059, prod, sort_default
1-3 of 3
2 Questions  2 Answers

Screwfix Q&A

Ask your questions. Share your answers.

« Back
Sort by:
The type of waste valve is the same as you use on washing machines & is cut into the waste pipe after the sink trap & has a built in non return valve the connector came from screw fix.
17 Nov 2015
Customer avatar
Newbury. Berks
Read all my Q&A
, Builder/Multi Trade
0out of 0found this question helpful.
Was this helpful?Yes0No0


The drain hose from the Screwfix 10M water softener can be run to waste via a washing machine style connection, the non return valve should avoid any smell from the waste pipe returning back to the water softener via the drain hose.
Please ensure that the drain hose from the water softener is secured onto the waste fitting as it uses mains water pressure to evacuate the waste water/brine during the regeneration cycle.
18 Nov 2015
0of 0found this answer helpful.
Was this helpful?Yes0No0
ive been looking to purchase a water softener,my problem is that i live in a flat and i cant vent the overflow drain hose for the brine tank to the outside of my flat,is there anyway of getting around this problem?thanks ken w
16 Oct 2015
Customer avatar
milton keynes
Read all my Q&A
0out of 0found this question helpful.
Was this helpful?Yes0No0


The overflow pipe from the Screwfix 10LTR water softener can be run over a tundish mounted on the side of the stand pipe and trap arrangement that also serves as a drain from the water softener.
19 Oct 2015
2of 2found this answer helpful.
Was this helpful?Yes2No0
1 of 1
  • 2016-02-06 T05:50:59.332-06:00
  • bvseo_lps, prod_bvqa, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasquestionsanswers
  • loc_en_US, sid_45059, prod, sort_default
1 of 1


Download more info (pdf)

Brand BWT
Fixings Supplied 15mm Fixing Kit Included
Flow Rate (Ltr/Min) 30 Ltr/min
Litre Capacity 10 Ltr
Manufacturer Guarantee 1 years
Minimum Bar Pressure 1.7 bar
Model No SF10M
Pack Size 1
Product Depth 480 mm
Product Height 532 mm
Product Type Compact Metered Water Softener
Product Width 270 mm
Total Product Weight 18 kg
Volume 10 Ltr