I just replaced an old metal twin arm drain with pvc and I can't get the drain to strainer connection to stop leaking. I used the included plastic washer and turned as tight as I could by hand, when it leaked I turned it another 1/8 to 1/4 turn with a wrench.

Is there something else I should have done?
Any other tips?

The drain to sink connection should be rubber washer.

The washer is what came in the kit. It's a flanged plastic washer that connects the short down pipe to the basket. All of the compression washers seem to work just fine. So just pick up an 1 1/2 rubber washer?

You also need to put a ring of plumbers putty under the top lip of the strainer before you tighten that ring nut. Since you did not mention it I'm wondering if you did it. There should normally be two washers with the strainer kit, one paper and one neopreme, the paper one allow the ring nut to slip rather than bunch up.

Yes. Unless you got the wrong tailpiece, but I doubt it.

The washer under the basket should be flat. Think about it. It's not compressing against a tube.

I think the strainer is already there. The flat washer should not be necessary either, because the gasket (rubber washer) should not be twisting It's a seal between the tube and the stariner.

I'm still thinking that he may have not read the directions correctly and sipped the putty or thought the gasket replaced the putty, which it does not.

If you installed the tailpiece gasket correctly and still have a leak then I would suspect you forgot toput a ring of plumbers putty under the lip of the drain or installed the drain incorrectly and put the rubber washer under the drain lip. They install like this ** strainer**
** Threaded drain with a small rope of plumbers putty or silicon jel under the lip of the drain.
Place on the sink
**Under the sink it goes like this**
** neoprene, (rubber) gasket**
**fiber friction washer**
** Retaining nut**
The tailpiece gasket is a white nylon flat gasket with a short piece that fits down inside of the neck of the tailpiece. (see image) Tightening the nut will compress the gasket and prevent leaks.
Good luck, Tom

Speedball, perfect pic as usual. I used the right washer. I did not remove the strainer, just replaced metal drain with pvc.

1) I'm wondering now if the strainer moved and broke up the old putty when I was taking the old drain off.

2) could mild corrosion on the bottom of the strainer cause the new tailpiece to not seal?

I guess I can check both

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Originally Posted by SC-tbfd

Speedball, perfect pic as usual. I used the right washer. I did not remove the strainer, just replaced metal drain with pvc.

1) I'm wondering now if the strainer moved and broke up the old putty when I was taking the old drain off.

2) could mild corrosion on the bottom of the strainer cause the new tailpiece to not seal?

I guess I can check both

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Quote:

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1) I'm wondering now if the strainer moved and broke up the old putty when I was taking the old drain off.

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If you fill the tub with the stopper in and it still leaks then it sounds like the putty seal has been broken. If it don't leak on past the drain then the seal's intact.

Quote:

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2) could mild corrosion on the bottom of the strainer cause the new tailpiece to not seal?

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You could sand it smooth and then try putting pipe joint compound on the flat surfaces of the tailpiece and gasket.
Good luck, Tom