I have a leak at the cistern inlet at the back of my toilet. Originally it was a Heath Robinson of different connectors from the water supply back to the plastic threaded inlet.
I've replaced all of that with an isolation valve that connects to the water pipe, a 6cm length of copper pipe then a tap connector. However much PTFE tape I use I get a leak where the metal tap connector connects to the threaded plastic cistern inlet pipe. I'm using the fibre washer that came with the tap connector - would I be better using a rubber washer instead ? Any help appreciated.
I've replaced all of that with an isolation valve that connects to the water pipe, a 6cm length of copper pipe then a tap connector. However much PTFE tape I use I get a leak where the metal tap connector connects to the threaded plastic cistern inlet pipe. I'm using the fibre washer that came with the tap connector - would I be better using a rubber washer instead ? Any help appreciated.