Outside tap non-return valve

[jmak]

I believe this is a legal requirement. Can anyone recommend what valve to fit to the tap or does it go on the hose connection? I have used standard grey 13mm (or is it 15mm?) plastic pipe. Also is it ok to use this type of pipe to bury as an extension to another outdoor tap?

 

[Fluffster]

Yes it is a legal requirement.
Purchase a tap with one built into the body.
Use 15mm pipe ,you should wrap/cover the pipe in a suitable material if you are covering with screed/concrete.
Pete

 

[jmak]

Ok, thanks for that, very helpful.

 

[bster]

if its a new location then the tap must have the double check valve inside the building (thermal envelope).

if this is not possible for an existing tap location a means of isolation and draindown must be provided.



(see i knew that Water Regs certificate would come in handy )

 

[Agile]

It did not help Fluster when he gave incorrect information!

Either he has forgotten or never bothered to take the Water Regs course!

Tony

 

[corgiman]

aint they been banned since '99 those bloody things

they are always locking up cos the washer comes orf its seating

 

[Softus]

And if you install a tap with a NRV then you'll need to isolate and drain it in the winter otherwise a frozen tap will invariably damage the NRV.

 

[bster]

Softus - i just said that!

 

[Softus]

No - we made two distinct, although complementary, statements.

You said that a means of isolation and drain must be provided.

I provided the information that you omitted, which was that you actually need to do the isolating and draining, in the winter, and why you need to do it.

 

[jmak]

Thanks chaps, I think understand....