[independentman]

In connecting a new hot water cylinder the male coupling connector to the tank for the cold water inlet pipe has a small leak - is this simply due to insufficient PTFE tape or should there be a gasket for the male coupler (it has a small flange to match the outer face of the cylinder internal thread connection). The leak is from the flange/tank thread area.

[speedball1]

in connecting a new hot water cylinder the male coupling connector to the tank for the cold water inlet pipe has a small leak - is this simply due to insufficient PTFE tape or should there be a gasket for the male coupler (it has a small flange to match the outer face of the cylinder internal thread connection). The leak is from the flange/tank thread area.

Is this the fitting you're talking about? Let me know. Tom

[independentman]

No its like the attached picture but with compression fitting to the pipework rather than push fitting. The screw thread to the tank

[speedball1]

Would this be it?

[independentman]

Again no it is like my picture the problem is a small leak from the coupler/tank join possibly due either to me not applying enough ptfe tape or because there should be a gasket. To clarify I am fitting a new cylinder and the cold water inlet connection has a small leak

[massplumber2008]

Does the fitting look like this?

If so, remove it and reapply teflon tape... Apply 6-8 wraps of teflon tape and reinstall... should fix this. No gaskets here.

After this fitting it connects to copper pipe... right?


MARK

[independentman]

No it is much closer to my picture posted yesterday and yes it does fit to copper pipe. But thanks for the info I only used 3 wraps so it looks like you've answered my question. Thanks