...without draining the system. Our 1930s house has a spare bedroom, with a washbasin connected to the hot water tank via lead pipes. Its washers need changing as I fear they will leak before long. A plumber tells me that a pipe-freezer cannot be used on lead.
I am reluctant to drain the whole system, with subsequent bleeding of my 17 radiators (which have copper connections, being no doubt a later addition) and perhaps other complications I can't foresee. If I did, I could replace the pipes with copper ones but that would involve a major upheaval.
Can anyone suggest an alternative to abandoning use of the basin please?
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