Plumbing

DRIPPING FROM CEILING AFTER LEAKING HOT WATER CYLINDER HAS BEEN REPLACED

Anonymous user 3 March 2024 - 3.25 PM

Approx 3 weeks ago, Hot Water Cylinder in Airing Cupboard replaced, as was leaking, water came through ceiling below & caused a light brown ring. Area inside ring was slightly damp & when I pressed a finger in, it made small indentation. (I think it's a drywall ceiling which has been stippled (popcorn). Prior to replacement, I think it had leaked for approx 3 weeks. Anyway, Cylinder replaced & all OK for approx 2 weeks, but mould appeared on ceiling below. Sprayed with Mould Killer & left to dry for approx 10 days, but mould reappeared. Re-sprayed with Mould Killer & I did spray quite a lot. Product is a foam that stays on ceiling, leave for 5 mins, then wipe off. Due to stippled ceiling, didn't want to wipe hard, so wiped product round a bit & left to dry. Did this Thurs night. Sunday pm, noticed drop of water fall from ceiling. It's now Mon night, 4 days after spraying Mould Killer & ceiling still drips. It's a very, slow drip (clear water) & comes out beside small indentation from finger. I've timed drips today - drip came at 12.35PM, 2.45PM, 4.30PM, 8.15pm, 9.16pm, 9.50pm, 10.14pm, 10.40pm, 11.04pm. In afternoon, when drip formed, I soaked up with kitchen roll before dropped & pressed kitchen roll against ceiling - might be why took longer between drips then. In evening, I let drips fall, & they seem more frequent. Question - is it likely over zealous spraying of Mould Killer soaked drywall stipple ceiling & moisture working out via dripping, even after 4 days, or is it likely to be another leak. Felt round new Cylinder pipes that leaked before & felt carpet/beneath carpet - all completely dry. I don't know if ceiling is painted.