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Air i Hot Water System

M

Markv

Hi . Filled aquaroll as usual, connected up pump . Removed all air from system and hot water all fine through taps etc. Then within a day the taps are gurgling , no hot water and have to repeat process. Can anyone advise. Many Thanks
 
Sounds like one of the non-return valves isn't working correct and leaking water back to the aquaroll, or more seriously you have a leak in the pipework. Trace all your pipework to see if there is a leak somewhere.
 
WoodlandsCamper said:
Sounds like one of the non-return valves isn't working correct and leaking water back to the aquaroll, or more seriously you have a leak in the pipework. Trace all your pipework to see if there is a leak somewhere.
Click to expand...

If it is an internal pump I agree with the above. We had a number of problems with ours leaking back to the aquaroll, in the end at the advice of the dealer, I fitted a cheap (about £6) in line non return valve between the water inlet inside the van and the pump. No problems since for about 4 years.
 
Hello Chris,

Your solution is only a partial fix. If you were loosing water from your water heater then the heaters non return valve (NRV) must have failed. But if the water was emptying back to the aquaroll then the non return valve in the supply must also have failed. These are two independent NRV's

The one on the heater is essential as it is there to maintain the water level inside the heater. If the NRV fails the water level can drop exposing the heating surfaces. This can lead to the electrical element burning out, or the gas system over heating. If this NRV fails it must be replaced for your safety.

The failure of the NRV in the cold supply is less dangerous, but it will very annoying on a pressurised system as the pump will repeatedly cycle to rebuild pressure. It will be less noticeable on a switched tap system, but it will probably produce air in pipes before water is delivered.
 
Hi

Thanks for help. Just to clarify I have an external submersible pump. I f it helps i'm not sure tbh I had leading up to the problem used a puriclean solution to clean system , might just be coincidental guys . Cheers
 
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