Help - new kitchen drains leak - see pic
Hi, my 1950s kitchen drain consistently clogs, probably due to those ancient years of abuse by my mom, who used to let loads of gooey fat down the drain. So i recently had a plumber over to unclog the drain, then asked him to replace it with a PVC drain.
Here's a pic of the 1.5" drain he installed:
After installation last week, the drain kept leaking.
I posted numbers on my pic. corresponding to the order in which the drain leaked.
After the 1st leak, I contacted him, and he came over to adjust it.
But then it leaked in the 2nd & 3rd areas (see TWO/THREE labeled in the pic).
As of now, it seems to have stopped leaking for the most part.
But I'm still concerned, because some guys I spoke with (including a local hardware store) said that metal nuts should have been attached to the metal strainers (rather than the plastic ones depicted.
Yet another guy said that he would not only place metal nuts, but also lengths of metal pipe descending from the metal nuts (directly beneath the strainers.
The plumber is stating that he's never had such issues before, and also said that metal nuts tend to corrode, and that brass nuts might be a better solution.
He also tried rubber washers (versus the plastic ones which come with the kits). Maybe the rubber washers helped, who knows.... In any case, i'm not sure if merely rubber washers are the best fix.
Any expert advice on this matter would be appreciated.
P.S. actually, what i'd have preferred most, would have been good-quality PVC nuts/washers so that if there's clogs in future, I myself would be able to unscrew, apply Turbo Snake or Drain King, then re-screw. Whereas the nuts/washers that came in this kit, seem to be the type of non-durable junk found in dollar stores. I mean, how much of a beating can plastic washers & threads hold up to?