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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Airlock
Can someone explain exactly how an airlock forms please.
I know how to clear them but it does get a bit tiresome as I seem to be doing it all the time. I don't understand why, with so much pressure from the tank, that the air doesn't just get blown out. I'm also thinking of adding a link between the hot and cold pipes by the sink downstairs, with appropriate stop cocks, to give me an easier clearance option - good idea ? Thanks, Bob. |
#2
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Airlock
"Bob" wrote in message om... Can someone explain exactly how an airlock forms please. I know how to clear them but it does get a bit tiresome as I seem to be doing it all the time. I don't understand why, with so much pressure from the tank, that the air doesn't just get blown out. I'm also thinking of adding a link between the hot and cold pipes by the sink downstairs, with appropriate stop cocks, to give me an easier clearance option - good idea ? Thanks, Bob. It may be that the tank and refill is insufficient, so the level drops too low under certain conditions, it can be because the hot tank is boiling under certain conditions. It might be worth fitting a surrey flange so you lose the air, or one of those auto bleed things. Badly designed pipe runs make things worse. No problems that I can see with a built in backblow system provided you have a one way valve on the incoming household main so that any of your hot cannot get back to the mains (it won't happen, but it is a requirement) MrCheerful |
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