To drain the CH/HW system I get the ideas (stop water, open drain valve, open upstairs bleed valve etc...). If I wanted to drain it partially e.g. to about a foot above the pump (I have a hole in a section of pipe about 2 feet above the pump, so plan to replace that piece of pipe), does anyone have any tips for 'knowing' when the system is sufficiently drained? Thanks.
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Partial draining
- Thread starter judder
- Start date
You could try tapping the pipe with a spanner but be prepared for a shower if you get it wrong............ 
Thanks for your reply. I'm not a plumber myself, but I once helped a plumber at my parents house many years ago and he just seemd to 'know' when the water had gone down below the point of interest.
What if I were to drain it down to the pump? I could open the pump bleed valve, catch the water that comes out and stop draining when no more water leaves the pump valve. Would that work?
What if I were to drain it down to the pump? I could open the pump bleed valve, catch the water that comes out and stop draining when no more water leaves the pump valve. Would that work?
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