I also forgot to mention i have tried the system with both HW & CH on, HW on its own and CH on its own. All 3 times the CW tank overflows because HW is venting into CW tank.
The guy who fixed the boiler was a recommended plum er ( not a heating engineer ) . There are 2 pipes that vent into the large tank, none into the smaller tank. I can't tell if the water is dirty running into the tank should I take a sample ?. Boiler is off at moment . Can I use immersion to...
Help required
I have started getting hot water venting water into my cold water tank in my loft. Because of this it is overflowing. I have recently had two jobs carried out (1) New overheat thermostat on my boiler (2) New mixer tap in kitchen. The temp of the rads seem hotter then have been. My...