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Plumberpro, Plumber
Category: Plumbing
Satisfied Customers: 634
Experience:  Heating and plumbing answers. 20 years experience
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I,m draining an open central heating system to replace a towel

Resolved Question:

I,m draining an open central heating system to replace a towel rail and valves on the ground floor level of my house. I've isolated the expansion tank and drained all the upstairs rads but on the ground floor some rads have drained completely but a couple are still full to the bleed valve. any ideas?
Submitted: 1 year ago.
Category: Plumbing
Expert:  Plumberpro replied 1 year ago.
Hi , that often happens, sometimes it the way the pipework has been sometimes sludge slows it draining. If you have the tank isolated there shouldn't be too much water. Keep some old towels handy.also check for other drain off valves, especially if the pipework is dropping downI use a water Hoover to suck out water sometimes , but when you get done put some central heating I inhibitor/protector in the tank
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Customer: replied 1 year ago.
In desperation I closed off every tap in the system, seemed ok. Thank you

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