how to pressurise as it has gone below 1.

jane, February 2018

YouTube

How to top up pressure on (your boiler make & model)

?, May 2018

Jane

It would help no end to have at least a tiny idea what you are talking about.

It would appear to be a central heating boiler but that's only a guess.

One would suggest you find the make and model and Do a search for the installation manual and the users manual, which should tell you how to repressurise.

Jeieodoi, February 2018