Hi, hope someone can help with a leaking shower pump (cold) flexi connector? I have been able to isolate the power and shut off the hot water supply but the cold supply is T'd into the cold feed without any isolation valve. I'm assuming I will need to shut off the rising main and empty the cold water storage tank before I can replace the flexi connector, unless anyone knows a different method? Seems pretty stupid to got to the expense of installing a pump and not bothering to isolate it, but there we go.