I have a compression T with a 15mm copper pipe and for some reason the pipe into the compression is slightly loose. It seems to be about 0.5 -1mm slack. I've tried 2 different olives (copper and brass) and even a section of the original pipe and even when really tight it still weeps ever so slightly, about a drip every couple of minutes. Last thing I tried was some plumbers paste, but I've just had another look after about 2 hours and theres a wet patch again. Any ideas please ?? TIA
Its not an old half inch pipe is it? They are slightly smaller than 15mm. Try pushing an end feed fitting over it, it should be a nice fit, if its slack its half inch.
Sorry I obviously didn't make myself clear. The T compression fitting is original to house, I removed 1 15mm pipe into it as I need to swop the taps over on new basin.The new pipe is the problem I think, which is why I tried a section of the original pipe into this joint without success, it still leaks !! My worry is if I remove and replace the complete T compression fitting, will I have the same problem when connecting the original 2 pipes back into new one ?
a nice fit, if its slack its half inch. Ah, cheers will do, can I still get half inch to 15mm fitting ?
1/2" or 15mm no difference with compression. Either the olive is overtight or the pipe disfigured.No need to swing on 15mm compression, just tight enough and then a nip is enough.Sure that the threads on the fitting are not knacked?
get some liquid ptfe or LSX and put it onto the olive before you assembly it, you will need to leave it a while to go off before putting the water back on though