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Apparently , I have a water leak , some where between the water meter ( in the alley ) to the house . The existing line is copper , in fact , all the water piping inside the house is copper , too . I will probably install the new line to the house in PVC . Where would I purchase the new " slip...

Any reason R134a could not be used to pressure test a R410a line set on a heat pump ? Instead of Nitrogen . The R134a should be removed when you vacuum down the system ? And , yes , I have an EPA card . Thanks :-) Wyr