How can I test to know there is an air bubble in my unvented tank?

[nodyland]

Hi

How do I know if there is an air bubble in my unvented tank?

How would I know if it has depleted and needs recharging?

Thanks

 

[Stadan20]

If it has been depleted then the temp prv would drip when your hot water is being heated

 

[Dan Robinson]

Tundish drips

 

[nodyland]

Thank you very much

 

[muggles]

Also you'd get no water out of the hot tap as soon as you turned the supply off to the cylinder, which is a symptom I seem to recall you describing on one of your many other posts (do try to keep everything on one thread...)

 

[nodyland]

Thank you