- Joined
- 10 Dec 2013
- Messages
- 3
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For some reason, Hot Water is finding its way into the Cold Water tank, irrespective of whether the C/H boiler is on or off.
All of the system's various cocks and valves have been systematically closed and re-opened in sequence, in an attempt to isolate the source of the transfer, but so far to no avail.
What is difficult to understand is that after the C/H boiler has closed down for the night, I have run the Cold Water tank down to below the ball valve level, so that the tank will then refill to ball valve level (nominally 3" below the overflow pipe). This ensures that the tank level is correct and that no water or C/Heating activity will take place overnight. However, in the morning, before the C/Heating boiler cuts in, the water level in the Cold Water tank has risen high enough for it to exit via the overflow and the temperature of the water in the Cold Water tank has now become warm.
Any suggestions?
All of the system's various cocks and valves have been systematically closed and re-opened in sequence, in an attempt to isolate the source of the transfer, but so far to no avail.
What is difficult to understand is that after the C/H boiler has closed down for the night, I have run the Cold Water tank down to below the ball valve level, so that the tank will then refill to ball valve level (nominally 3" below the overflow pipe). This ensures that the tank level is correct and that no water or C/Heating activity will take place overnight. However, in the morning, before the C/Heating boiler cuts in, the water level in the Cold Water tank has risen high enough for it to exit via the overflow and the temperature of the water in the Cold Water tank has now become warm.
Any suggestions?