Post by DIYDafty on May 13, 2019 20:39:05 GMT
So I'm midway through plumbing up my tiny towel rail (never thought it would be so much ball ache !).
I know you're nhot supposed to test pipework with air - atl east I think you're not but I've always done it because it is quick and surely would locate a big leaker very fast. This time I had about 1-2 metres of pipework followed by an inlet valve to the rad (towel rail). I pumped it to 1 bar with the valve closed and the needle on my pressure gauge slowly dropped to zero over around 5 minutes. I then opened the valve and pumped it up again - a lot more pumping this time. It held for a lot long but I think it is still going very slowly down.
I also sprayed leak detector fluid on all my joints and couldn't see any activity at all but I'm no expect using that stuff and just sprayed it a bit randomly and watched for _any_ sign of new bubbles. There weren't any.
I could connect this up to the mains with a hose but a bit of a pain and then I'm left with wet pipes.
From the above how likely do I have a slow leak ?
I know you're nhot supposed to test pipework with air - atl east I think you're not but I've always done it because it is quick and surely would locate a big leaker very fast. This time I had about 1-2 metres of pipework followed by an inlet valve to the rad (towel rail). I pumped it to 1 bar with the valve closed and the needle on my pressure gauge slowly dropped to zero over around 5 minutes. I then opened the valve and pumped it up again - a lot more pumping this time. It held for a lot long but I think it is still going very slowly down.
I also sprayed leak detector fluid on all my joints and couldn't see any activity at all but I'm no expect using that stuff and just sprayed it a bit randomly and watched for _any_ sign of new bubbles. There weren't any.
I could connect this up to the mains with a hose but a bit of a pain and then I'm left with wet pipes.
From the above how likely do I have a slow leak ?
