hello
my father in law calls me, he has a leak.
from what i can see he has on oldish unvented system(80's), it has a blue steel expansion reservoir on top of the cylinder.
the leak only makes itself apparent when the sytem turns on in the morning, i am presuming that the air pocket in the expansion tank has gone and as the water expands it has nowhere else to go.
when my father inlaw was able to get into the attic he remedied the situation by turning off the cold water inlet, opening a hot tap until the water stopped and left the tap open. there is a foot-pump on top of the unit which can be connected to a nipple on top of the expansion tank, pump until the gauge reads 20 lbs, turn off the bathroom tap and turn on the cold water inlet. bingo he says....but it does not work.
i've pump endlessly but nothing happens, i can achieve the pressure by pumping as the cold water is let back in, this only last a day and then it leaks again!
any ideas
paul
my father in law calls me, he has a leak.
from what i can see he has on oldish unvented system(80's), it has a blue steel expansion reservoir on top of the cylinder.
the leak only makes itself apparent when the sytem turns on in the morning, i am presuming that the air pocket in the expansion tank has gone and as the water expands it has nowhere else to go.
when my father inlaw was able to get into the attic he remedied the situation by turning off the cold water inlet, opening a hot tap until the water stopped and left the tap open. there is a foot-pump on top of the unit which can be connected to a nipple on top of the expansion tank, pump until the gauge reads 20 lbs, turn off the bathroom tap and turn on the cold water inlet. bingo he says....but it does not work.
i've pump endlessly but nothing happens, i can achieve the pressure by pumping as the cold water is let back in, this only last a day and then it leaks again!
any ideas
paul
