On Tue, 29 Mar 2011 01:47:32 +0100, Gazz wrote:

they do a washer that looks like it's a fiber type, would one of those
be better? assuming toolstations washers are fibre??

I've no idea how motorhome immersion heater fittings compare with those
on domestic hot water cylinder immersion heaters, but on the latter I use
a *lot* of PTFE tape wound round the thread and built up heavily onto the
shoulder so that, as the heater is tightened, the PTFE adds to the fibre
washer in sealing the face of the heater flange to the flange on the
cylinder boss.


--
John Stumbles -- http://yaph.co.uk

Many hands make light work. Too many cooks spoil the broth.