Old house. Fitting new bathroom. No valves anywhere so figure I may as well install them.
Find rising main. Locate secondary stop cock isolating main as it heads upstairs. Taps stop. Direct system. Great. Ready isolators.
But secondary stop cock starts to leak from tap. A lot.
Locate main stop cock in house. Turn it. Thankfully doesn't leak.
Open all taps upstairs and down. Behave as expected (empty water then stop). Blow and huff and puff a lot to try and clear system. Secondary cock still leaking. Not as much, but still leaking.
Looked around header tank. All seemed normal. Wait. Still leaking. Wait some more. Still leaking.
Why is it still leaking? Only a drip every minute, but why?
And I notice the house is fed from lead pipes...
Find rising main. Locate secondary stop cock isolating main as it heads upstairs. Taps stop. Direct system. Great. Ready isolators.
But secondary stop cock starts to leak from tap. A lot.
Locate main stop cock in house. Turn it. Thankfully doesn't leak.
Open all taps upstairs and down. Behave as expected (empty water then stop). Blow and huff and puff a lot to try and clear system. Secondary cock still leaking. Not as much, but still leaking.
Looked around header tank. All seemed normal. Wait. Still leaking. Wait some more. Still leaking.
Why is it still leaking? Only a drip every minute, but why?
And I notice the house is fed from lead pipes...