Argh need help with fitting toilet

lucym

We are trying to plumb in a new toilet – how do we ensure a tight seal between the metal pipe work and the plastic fittings on the cistern? Also how important is it that we fit an isolation valve to the supply pipe?
Grateful for any help...

Devon_Hippo

lucym wrote: »

We are trying to plumb in a new toilet – how do we ensure a tight seal between the metal pipe work and the plastic fittings on the cistern? Also how important is it that we fit an isolation valve to the supply pipe?
Grateful for any help...

Best advice I have is to check some DIY sites on how to plumb it in and skip past the bits you know until you get to the part you need. Try this example .... Fitting a Toilet

Don;t think you need to fit an isolation valve, but they are cheap enough to fit if you are reworking the supply pipe and means you can isolate the loo for any reworking without affecting rest of house. I would fit one if I were you :beer:

Bungarm2001

DEFINITELY fit an isolation vavle.

The first time you have to turn the water off to the whole house just to adjust/fix/unblock the loo, and everyone suddenly wants a cuppa, or a shower, you'll be cursing yourself for not fitting one.

wallbash

how do we ensure a tight seal between the metal pipe work and the plastic fittings on the cistern?

Use the 15mm tap fitting BUT dont forget the small washer.
Hand tight , then another turn

TimBuckTeeth

Yes - definitely fit an isolation valve.
Using a flexible pipe between the valve and the pipework can make things easier.
It avoids any problems with exactly aligning the pipework with the valve inlet, and the soft fibre or rubber washer will seal easily, avoiding over-tightening on the plastic thread.
http://www.screwfix.com/prods/76799/Plumbing/Flexible-Hoses/WRAS-Hose-15mm-x-F-x-300mm-x-10mm
Check the thread size but a 1/2" tap fitting is usual, can get flexi hoses with built in isolator valve (although a separate isolation valve may be preferable) or push fit rather than compression fitting to the copper pipe.

lucym

Thanks for all the help!

We had bought a flexible pipe connector when we should have bought a tap connector...sigh.

27col

Some flexible tap connectors have a built in isolation valve. But definitely fit one, its a right pain for all concerned when there is no local isolation fitted. I would imagine that it is compulsory on new installations. I would certainly never fit any water use appliance without using a local isolator.