J
Jeff56
I can't get a consensus on this from four plumbers that have visited. We've been using the system with no prpblems for 7 years - but the cylinder leaks and needs replacing. It's an old and peculiar set up I have onherited after buting my two storey house. I would greatly appreciate any suggestions as to what is going on with my pipes... it's some sort of open vented system
1) Boiler in basement
2) Hot water cylinder upstairs with electric immersion heater and central heating coils , and vent pipe to loft tank 1
3) When draining through the boiler stopcock the radiators and cylinder both empty out (and 2 loft cold water tanks)
4) In the loft are two largeish capacity plastic tanks connected near the bottom to effecticvely form one tank
4) Tank one has mains feed, expansion vent pipe and outlet feed pipe
5) Tank two has tank overflow pipe to outside wall , and an outlet feed pipe. However this outlet pipe, which goes down and out of the attic into the bathroom (hidden by a shower panel) with the other pipes does not appear to be functioning - I have blocked off tank one's outlet and tried to refill the system using tank2 but the level stays the same.
6) The boiler wall unit is set up so that you can have hot water and heating on, but not heating only - it switches itself off if you try to do that.
I am thinking of sawing into the cylinser to see if it is primatic.
If it is a not a primatic cylinder, how could it work - is there possibly a sharing of the hot water vent pipe by the heating pipes behind the shower panel? How safe would that be - we've never had brown water from the taps - except for a brief moment after refillinfg the system recently.
1) Boiler in basement
2) Hot water cylinder upstairs with electric immersion heater and central heating coils , and vent pipe to loft tank 1
3) When draining through the boiler stopcock the radiators and cylinder both empty out (and 2 loft cold water tanks)
4) In the loft are two largeish capacity plastic tanks connected near the bottom to effecticvely form one tank
4) Tank one has mains feed, expansion vent pipe and outlet feed pipe
5) Tank two has tank overflow pipe to outside wall , and an outlet feed pipe. However this outlet pipe, which goes down and out of the attic into the bathroom (hidden by a shower panel) with the other pipes does not appear to be functioning - I have blocked off tank one's outlet and tried to refill the system using tank2 but the level stays the same.
6) The boiler wall unit is set up so that you can have hot water and heating on, but not heating only - it switches itself off if you try to do that.
I am thinking of sawing into the cylinser to see if it is primatic.
If it is a not a primatic cylinder, how could it work - is there possibly a sharing of the hot water vent pipe by the heating pipes behind the shower panel? How safe would that be - we've never had brown water from the taps - except for a brief moment after refillinfg the system recently.
