On Mon, 22 Dec 2008 09:09:39 +0000, Stephen wrote:

On Sun, 21 Dec 2008 22:56:00 +0000, John Rumm
wrote:

Would life be simpler if both were the same size?

I suppose if you favour pushfit then it would, however it would be a
right PITA if you were using solvent and kept finding joints that would
not weld.

The problem comes when you have to join pushfit waste and solvent weld
waste. IIRC the only way to do that is with a compression joint and some
of those have ridiculously big nuts, which can't fit in tight spaces
under floorboards and other awkward places.

Fittings are made for the coversion I've seen them in the Warehouse B&Qs

Also the rubber collars that adapt CI soil stacks to PVC also come in more
modest sizes they have jubilee clips. They would be scarcely bigger than
the pushfit joints.


--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html
Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html