fitting cistern

[jonnyp1]

i am fitting a new bathroom and am having trouble with cistern. i have a brass elbow to connect mains water, it has a compression on one side and a screw end that i am trying to connect to plastic thread from cistern. i cant seem to tighten the fitting enoug to stop it leaking and have it pointing in right direction down for pipe. any answers if you understand would be appreciated.
jon

 

[mogget]

In my experience a brass elbow with a fibre washer will not do up tight enough to stop leaks, on a plastic thread. A flexible tap connector or pushfit one with a rubber washer and a deeper thread would solve the problem, provided the threads aren't already stripped from doing the brass one up too tight. If the pipework is visible and a plastic connector would be an eyesore you might want to go for a brass float valve instead of the plastic one, then you'll be able to do the brass connector up tight enough. If you wait a while maybe someone will post a more ingenious way of sorting it out.

I am a householder not a professional.

 

[seco services]

servive valves are designed for this type of fiiting
just don't over tighten them and stretch the plastic thread.