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Casual plumbing advice needed - ho'ard - 10-05-2006
A tenant's kitchen sink drain was leaking.
I replaced the whole drain.
Now it seems to be leaking around the drain, where it mates with the metal of the sink.
Initially I used plumber's putty where the drain seats, and assembled and tightened all the other parts as they came in the package.
Tonight I took it apart and took the cardboard seperators out-- I'd been told they need to be there-- but it still leaks. One rubber gasket between the drain and the basin.
Can anyone make a few suggestions for solutions, or obvious mistakes I might have made?
I did this same replacement on my own sink a few months ago with 100% success.
Thanks . . .
Re: Casual plumbing advice needed - Racer X - 10-05-2006
bent or corroded?
Try 2 rubber gaskets, and smear silicone plumber's grease on all 5 mating surfaces and put it back together. The sliding allowed by the grease should allow you to get it fairly tight, and the double layer of rubber should compensate for any warped or corroded surfaces (within reason) It isn't under pressure, so a double gasket shouldn't be a big deal.
Re: Casual plumbing advice needed - Kraniac - 10-05-2006
DId you thoroughly clean the surfaces that accept the gasget (below) and the putty (above)? scraping off hard chunks of the old putty and whatever else might have been there? I usually clean these areas thoroughly and then give them a mineral spirit bath.
Are you sure that, as you were tightening the basket nut, it didn't torque to an off center position or spin to much? It can do this easily and that would put it outside the mould of the part the sink that accepts the rim of the drain, or, it can screw up the seal of the putty from the spinning.
Did you use a spud wrench to tighten the basket nut? Did you have some way to hold the drain (topside) securely as you tightened the large nut with the spud wrench? A friend with some channel lock handles and a good size screwdriver between them is usually neccessary.
was your putty fresh?
Re: Casual plumbing advice needed - OWC Jamie - 10-05-2006
Not quite sure what cardboard washers could be.
There should be a metal washer between the spanner nut ant the rubber washer, otherwise you're distorting the rubber washer.
strainer body
putty
sink
rubber gasket
metal washer (maybe plastic now)
spanner nut
Are the tenants getting kinky in the sink ?
Re: Casual plumbing advice needed - ho'ard - 10-05-2006
This is exactly what I needed.
I guess there is a plastic washer between the gasket and the nut.
I left a cardboard gasket between the rubber and the sink I think.
Based on the above, I think maybe:
-hand-tightening the big nut was not enough?
-drian is not well centered on basin opening and also has a bit of an angle which I hoped tightening would correct. Pipe sizes not quite right; think I will get some more putty, a fresh gasket, some grease, and a (looks up) . . . spud wrench.
Re: Casual plumbing advice needed - Racer X - 10-05-2006
you use those when your taters get lose.
Re: Casual plumbing advice needed - Dick Moore - 10-05-2006
billb nailed the order of assembly. Some hardware stores have a product called Magic Lube Teflon Grease and smearing that on both sides of the rubber gasket (or two -- good idea) will probably do the job. Most important is to be sure the bottom of the drain opening on the sink is perfectly plane, with no highs or lows around the edge -- a small hammer is handy for tapping out uneven areas.
Re: Casual plumbing advice needed - Racer X - 10-05-2006
the plumber's silicone grease won't react with the rubber and cause it to swell, go gummy or eventually fail. Silicone is rubber safe.
Re: Casual plumbing advice needed - OWC Jamie - 10-05-2006
I'll wager those cardboard seperators were:
chipboard
came one on each side of the rubber gasket in the package to minimize the rubber gasket's exposre to environmental elements.
Chipboard is also often used in the stamp-cutting press to keep the rubber flat so you end up with a round gasket. There's also often a waste piece of chipboard put between the cut object and the knife table because the stamp-knife should never actually contact the table.(also used with leather to keep it flat, too.)
In storage, the chipboard would also help keep the gasket flat , maybe also stop it from sticking to anything else in the package.
I don't see where the chipboard could serve any other purpose beyond processing/packaging/storage.
Re: Casual plumbing advice needed - ho'ard - 10-05-2006
Could have sworn the hardware guy said to use it.
It seemed somewhat impermeable or coated. I assumed it was to keep the rubber gasket from binding during tightening of the nut.
Upon reflection I think the big problem is that the pipe comes off at an angle causing the drain to sit higher on one side, and I thought I could just tighten things into place but that's probably resulting in warpage.
I think the next step is the silicon grease, a new seat of putty, and either an additional gasket, or a special thick gasket if they make one.
Thanks!
-h'