Hi after decorating my bath room and disconnecting the Cistern for a couple of day. I have now found it has developed a very slow water leak from a hair line crack, the crack looks to be very old and I suspect the leak had started due to the Cistern being dry of water for a couple of days!
My question is will the leak stop after a few days now it wet again or should I get some thought of mastic leak fixer?
thanks in advance,
Jon