What's the secret to installing PVC drains that don't leak?

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Old 12-12-02, 05:01 PM
J
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What's the secret to installing PVC drains that don't leak?

My basement laundry tub started leaking at one of the trap connections. I replaced all the PVC piping, used proper rings and teflon tape, squared everything up carefully, tightened firmly by hand...and the dang thing still leaked. I tightened even tighter (by hand), but still it leaks. I took it all apart, re-installed...still leaks.

Is there a trade secret I am unaware of? Any tips?

Thanks,

Jon
 
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Old 12-12-02, 05:10 PM
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Make sure beveled end heads out, I sometimes will apply pipe dope to the washers, this stops all leaks.
 
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Old 12-12-02, 06:16 PM
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Yeah, brush the face of all the beveled washers, and the face of the p-trap arm with pipe dope... it is easier to use than teflon tape on those areas... then use a pair of channel locks to tighten the joints... not MUCH but you can definitely make them tighter than hand tight...
 
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Old 12-12-02, 08:10 PM
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I like to use teflon tape along with teflon pipe dope... never had a leak.
 
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Old 12-12-02, 08:34 PM
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I've never used tape or dope on these hand fastened connections, and they've never leaked. Make sure you have enough 'pipe in pipe'. I usually cut the pipe so that it goes as far into the next fitting as it will go, then just tighten the rings.
 
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Old 12-13-02, 04:52 AM
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Pendragon,
You're right, I had a brain cramp, I was thinking about NPT PVC fittings and all NPT fittings in general. I've never had to put dope or tape on the drain fittings.
 
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Old 12-13-02, 06:44 AM
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I have needed to put pipe dope on the pvc type of tubular drains but not on abs tubular type of drains.

That pipe dope does stop the leaks.

Use it if you need it.
 
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Old 12-13-02, 09:27 AM
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Thanks for all the tips, guys.

Pipe dope...I have a feeling that this is not the actual name of the product. What should I be looking for on the shelf?

Jon
 
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Old 12-13-02, 09:38 AM
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Use teflon Paste

 
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