Recent content by jayessdeecee

Ok, lets see if I can answer some of the questions. The Zone valve is a ZA-v228/6 Landis and Staefa, the Red (oval shaped) chamber is a Flexcon 18, everything seems to be working - ish, its just that it looks as though the Zone valve is a bit sticky. My guess is that the Zone valve is open...

Ok Shaneo , Thanks But there isnt anything coming out of any discharge pipes or PRV's on the water tank and when the system shuts down the pressure on the guage over the expansion tank drops back down to between 0.5 bar and 1 bar. Can anyone explain what the Zone valve is doing because it...

1) Boiler make / model (gas or oil) Suprema 100 2) What is / is not happening The pressure on the red tank sited above the Megaflow used to be a constant level just over the 1 bar, occasional topping up was required. HOWEVER over last couple of months the pressure has been dropping to 0.5...