If your pressure gauge constantly drops then your system is loosing water.
This can be caused by a faulty expansion vessel, A faulty safety valve or a leak from the heating system.
Constantly topping up can have a detrimental effect on the boiler and the heating system. It is highly recommended that you get the problem identified and repaired as soon as possible.
If you’d like a registered gas engineer to solve your gas boiler problems in Dublin, give us a call on 01 668 1935