I've got a toilet with a small leak where the copper pipe is connected to the fill valve. I want to replace a short section of pipe between the fill valve and the isolation valve on the copper pipe with a loop of flexible hose. There's slight movement when seated...
The isolation valve on the copper pipe in a 15mm threaded connection but I'm not sure what the thread on the bottom of the fill valve is.
I've had a look at the fill valve and there are on obvious makers marks.
Any ideas? Is there a standard thread?
TIA! Guy