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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Plumbing Questions >> New bathroom https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1117191918 Message started by spongebob on May 27^th, 2005, 12:05pm

Title: New bathroom
Post by spongebob on May 27^th, 2005, 12:05pm

Where an additional bathroom is installed in a dwelling and the hot and cold supply can be isolated by easily accessible ball valves, is it still necessary to install iso valves to the individual pipes supplying the sanitaryware and bath?

Title: Re: New bathroom
Post by bstyle on May 27^th, 2005, 1:11pm

I would put isolation valves on everything, Bath, Basin, W.C. Also a couple of gate valves or lever action valves on the Shower. You shoul d do this so you can isolate each individual item seperatly.

Also, if you mean that you are supplying the entire bathroom with Ballafix valves then this is incorrect, the correct isolation method would again be Gate valves or lever operated valves.

Title: Re: New bathroom
Post by billythekid on May 27^th, 2005, 6:14pm

I wouldnt bother with seperate valves to each appliance unless you need them for right now, i.e need the pipework installed and toilet on but basin and bath still to fit. Then you could drop on valves for each appliance, or simply stop end them. Theres no real need to seperately isolate each appliance when there are control valves in place for the "legs" of the bathroom, and no provision in teh regs for this either.

fwiw I tend to put ballofix valves in as well as they look neater, although you then need a screwdriver to operate them, not ideal in an emergency, as bstyle said the correct isolation would be gate valves, stop cock(for high pressure) or lever valves

btk

Title: Re: New bathroom
Post by spongebob on May 28^th, 2005, 12:07am

Thanks for the replies chaps. Existing isolation valves are full bore lever operated. There will be a thermostatic mixer shower going in at some point. Hot water is from a combi. Are check valves needed? Sister-in-law has recently had a combi and shower installed. Hot and cold supply pipework to shower had a couple of screwdriver operated valves with "big nuts" on them. Not seen these before. Anyone come across them ?

Title: Re: New bathroom
Post by billythekid on May 28^th, 2005, 12:09am

could be bsp iso ballofixes to fit to a male thread... or perhaps they were in line filters, which can look like ballofix valves a bit, but they are bigger.

btk