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BWT Polyphosphate 1-Stage Whole House Scale Reduction System (20315)

For providing whole house Hard water Scale Reduction. Easy to install. Full installation instructions provided.

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£39.99INC VAT

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BWT Polyphosphate 1-Stage Whole House Scale Reduction System is rated 4.0 out of 5 by 1.
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Rated 4 out of 5 by from Excellent scale inhibitor This must be the best value, longest-life phosphor-dosing scale inhibitor on the market. The unit contains a large quantity of dosing crystals which can last for years: Even when they're fitted on the cold supply to the whole house (except the kitchen sink) most of the mass of crystals is still going from ones I've fitted 5 years ago. When fitted to e.g. an electrically-heated shower they should last practically forever. Fitting is slightly fiddly: it can be hard to get good, secure fixings for the 4 closely-spaced screw holes into less than perfect walls (e.g. old crumbly bricks) and the water connections, involving 3/4" BSP male x male adapters which screw into the housing, are a bit clunky and add to the size of the unit which can be an issue when trying to fit it into confined spaces. (Don't try to use a fitting with a 3/4" male thread in place of the plastic adapters: it is surprisingly easy to cross-thread them and strip the thread in the adapter housing!) Flexible bath tap connectors (with 3/4" threads) can be used. Incidentally the check valve supplied with the kit is for compliance with water regs: since the inhibitor adds a minute amount of chemical to the water, and even though the chemical is food grade, the water is considered to be no longer fluid category 1 - wholesome water - and must be prevented - by the check valve - from getting back into the water mains. If there is another check valve upstream of the inhibitor (e.g. at the incoming main) that will do instead.
Date published: 2013-12-14
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What cartridge does this take

Is it the same cartridge as the Combi Care scale inhibitor?
Asked by: NemoUK
No, the BWT Polyphosphate 1-Stage Whole House Scale Reduction System (product code 20315) is a different system to the Combi Care. The compatible cartridge for this system (20315) is the BWT Polyphosphate filter cartridge (product code 88345).
Answered by: BWT Product Expert
Date published: 2017-03-12

I need single appliance protection, namely my combi-boiler, will this unit be okay connected to the cold water feed to the boiler to prevent build up of scale within the appliance.

Asked by: GuzziBoy
Yes, this installation will be effective in preventing the build-up of scale within the appliance.
Answered by: BWT Product Expert
Date published: 2016-06-25
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Specification
Brand BWT
Manufacturer Guarantee 1 Year Guarantee
Pack Size 1
Pieces in Pack/Case 1
Product Type 1-Stage Whole House Scale Reduction System
Total Product Weight 2.75 kg
Water Treatment Product Type Scale Inhibitors

H x L x W: 340 x 130 x 140mm. Cartridges should be replaced every 12 months for effective operation.

Downloads

Instruction Manual