How to do a flush through of a Vailent combi gas boiler?

1 Answer

Relevance
  • 4 weeks ago
    Best answer

    its not something you should tackle ...but if done properly the plumber will have a special pump ..and chemicals ..they turn all rads off bar one ....work their way through ..turning on and off in sequence ...in doing the rads the boiler is done at same time ...it can take most of day

Still have questions? Get answers by asking now.