Evening all
Just wondering whether members of the forum have in their plumbing portfolios any tricks to confirm whether there are leaks in confined spaces, when other methods of investigation don't provide certainty.
I recently fitted a vanity unit with sink in our bathroom. I used compression connectors to join the old copper sink feeds under the floor to new 15mm tails which rise to connect to the tap via flexis. Those compression connectors are now behind the vanity unit at floor level, and can only be reached if I pull the unit away from the wall. That would mean breaking the silicon seal at the back of the sink, removing the screws securing the unit to the wall, disconnecting the waste and lifting the unit over the newly fitted cushion flooring.
I tend to worry about leaks for at least a couple of months after I've done any plumbing work, so this afternoon I took my endoscope and poked it down the back of the unit to have a look. I can't see any drips on the connectors but the floorboard below looks damp. So I took a stick, wrapped and taped some kitchen roll round it, put it down the back of the unit and poked it around roughly where the connectors sit above the floor and against the floor below. The piece of kitchen roll came up bone dry, but I'm not yet convinced. Is there any other way I could check, any tried and trusted trick to detect the presence of a leak in such circumstances without pulling this unit out? There's probably something obvious, but at present I can't work out what it is.
TIA
Just wondering whether members of the forum have in their plumbing portfolios any tricks to confirm whether there are leaks in confined spaces, when other methods of investigation don't provide certainty.
I recently fitted a vanity unit with sink in our bathroom. I used compression connectors to join the old copper sink feeds under the floor to new 15mm tails which rise to connect to the tap via flexis. Those compression connectors are now behind the vanity unit at floor level, and can only be reached if I pull the unit away from the wall. That would mean breaking the silicon seal at the back of the sink, removing the screws securing the unit to the wall, disconnecting the waste and lifting the unit over the newly fitted cushion flooring.
I tend to worry about leaks for at least a couple of months after I've done any plumbing work, so this afternoon I took my endoscope and poked it down the back of the unit to have a look. I can't see any drips on the connectors but the floorboard below looks damp. So I took a stick, wrapped and taped some kitchen roll round it, put it down the back of the unit and poked it around roughly where the connectors sit above the floor and against the floor below. The piece of kitchen roll came up bone dry, but I'm not yet convinced. Is there any other way I could check, any tried and trusted trick to detect the presence of a leak in such circumstances without pulling this unit out? There's probably something obvious, but at present I can't work out what it is.
TIA

