- 13 Oct 2006
- Reaction score
Bled my rads, dropped pressure to 0, so increased it (to 2!!!). Since that there was a drip under pump? Service engineer came out recharged expansion vessel, replaced o ring and drip stopped. However pressure drops every night from 0.6 to 0 (but still have hot water and rads fine). Any idea, boilerman says I have a leak, expansion vessel is holding its charge but is this a coincidence? He suggested locating leak or putting in leak sealant. Help?