Search results

You are right, it should not have been fitted in the first place. The installer said he had leak tested it, but clearly he had not as it stopped after a day or so due to pressure loss. He subsequently installed a pressure control valve and a non-return valve and it has run continuously since...

CH system (circa 1955 and originally gravity fed) has 1" steel pipework feeding into larger diameter steel pipes in sand filled trenches under concrete floor before returning to Vaillant EcoMax 835 boiler. The system has a slow leak which went undetected during boiler installation in 2005...