My parents old house, Dad used to have to use a drain snake every few years,
to cut through the grease build up. You may have to do the same.
Christopher A. Young
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Just an old 2-basin kitchen sink. We ripped the old copper drainpipe out
maybe 4 years ago, installed ~ 5' of pvc.
Drain runs slow. Works, but obviously only 2/3 of capacity. I start
with bakg soda and vinegar, then some crystal Drano, then the pot of
boiling water, then the plunger. No noticable effect.
"Law Without Equity Is No Law At All. It Is A Form Of Jungle Rule."