A couple of months ago I replaced the immerison heater element in our
HWT and everything seemed fine. However I know I left it set really
high and recently the tank seems to have developed a leak from one of
teh side outlets (2/3rds way up the side, feeding the shower pump) -
it's a steady trickle currently leaving a towel sodden after a day or
It's a pretty old tank with polystyrene lagging. Before I start doing
things I wanted to check it's likely to be just a gasket/sealant (some
gunky mastic does seem to have come away) and that all I need to do is
drain the tank, loosen the inlet, apply some ptfe/plumbers mait/teflon
and then retighten ?
Do I have to drain the tank thru the drain cock at the bottom (ISTR
the hot taps feed off teh top of the tank on gravity) ?