Still got air stuck in water system

[Stubear]

Thanks to everyone for ideas but still nothing has worked - the system is still full of air and have run both hot and cold taps without success - the boiler seems noisy when filling system and when I open boiler drain valve it sounds full of air - might these factors be a clue to something for any budding water expert out there - here’s hoping cheers

 

[pappajohn]

Is the pump working.......I mean actually working, not just running.
Remove the outlet hose from the pump and put a towel over the outlet then turn on the pump...
Towel wet, pump working
Towel dry, pump not working

 

[Stubear]

Will try that tomorrow - interesting thought thankyou

 

[L' Hobo]

?

 

[Sue and Rick]

The dip pipe into the water tank (inlet side of pump) may have a crack, split in it. Therefore drawing air / water mixture into supply pipe.

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[Stubear]

What’s a dip pipe?

 

[Landy Andy]

The pipe that goes into the water inside the storage tank

 

[Odd-no-more]

My guess is an air leak on the inlet side of the pump. Loose fitting, cracked pipe, etc.

 

[Landy Andy]

If your water is constantly airiated without leaking water, then it is likely the pump is drawing in air. Either be the pump, or the supply to the pump. After the pump you would see a leak as it’s then pressurised water.