Hi ive just changed a bathroom suite on a bungalow that has a sealed hot water cylinder. The plumbing in the house is old including the cylinder. When turning the hot water back on the hot water dousnt maintain pressure. When turning the hot water taps on their is a sudden burst of mains pressure wich the dwindles in to a very low pressure run. Any ideas on what is causing this and how to rectify. Cheers J
Low hot pressure on sealed system
- Thread starter jfk
- Start date
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whats a sealed h/w cylinder ?
"its old"
why is it delivering mains pressure hot water ?
air lock ?
"its old"
why is it delivering mains pressure hot water ?
air lock ?
Sorry unvented cylinder
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No the taps are fine, it has effected all the hot
taps in the house
taps in the house
The initial surge is the air bubble expansion dissipating.
After a few seconds the air charge is used up and your flow rate drops to what is coming up the road.
If this doesn't affect the cold then the unvented has not been fitted with a balanced cold off the combi valve, and the strainer in the valve is most likely partially blocked.
After a few seconds the air charge is used up and your flow rate drops to what is coming up the road.
If this doesn't affect the cold then the unvented has not been fitted with a balanced cold off the combi valve, and the strainer in the valve is most likely partially blocked.
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