DIY Doctor UK DIY Forums

Having fitted a new rad I think there is an air lock in the loop, and the pressure has dropped to bellow 1/2 bar. How do I raise the pressure on a closed system boiler?

Through the filling loop which may be inside the boiler (accessible from underneath) or by a separate braided pipe which is usually sited just below the boiler.

Hi,

With the filling loop/key!


Boiler make/model?