Falling pressure from combi boiler

[tryer10]

Hi all,

Falling pressure..... which I guess can only come from a leak, which must be under my ground floor floorboards as all the ceilings are fine.

The system is only 1 year old and had Fernox inhibitor added.

Ive had falling pressure for about 10 months and have just been using the filler valve thing to top up the pressure.

I am about to lift up floorboards and fix the leak. However, after all these months of topping up the pressure should I add fresh inhibitor??

Thanks

 

[Hugh Jaleak]

Check the PRV discharge outside before assuming anything. It would probably be wise to add some inhibitor, to keep the concentration topped up.