Kitchen mixer taps

[Arthur]

Hi.

I purchased this mixer taps on ebay.

I need to fit a non-return valve ?

I'm hoping all modern mixer taps have a non-return feature built in.

Thanks.

Arthur.

[jim_in_sussex]

umm so you paid 20+10=30gbp?

looks reasonably fully priced to me.

shame the seller doesn't include customer service in the deal. I'd have expected more for that price.

have you tried ringing him and asking how to fit them?

FWIIW normal UK mixer taps (at least under the old water by-laws- may be different now with EU rules) had to have 2 completely separate paths from the incoming H & C pipes to the outlet nozzle. Just look into the nozzle & you should see 2 separate outlets. If not panic, & make a dash for Dungeness before the seller swims to France.

Unless you're fitting them in such a way or position that water could back siphon or reverse flow into the supply, there's no need for a non-return valve. Typical place you need a non-return valve is on outside taps because a hosepipe is often connected. Another is where a shower hose or spray head can fall under bath water (into the water in a shower tray) because contaminated water could be sucked back. [all water is regarded as contaminated the moment it leaves a tap.]

HTH

[Tim Mitchell]

In article , jim_in [e-mail] writes

I don't think this is true any more, because a lot of the ones currently on sale at B & Q have a combined spout. In that case I think you would need a non-return valve on the cold.