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Can I add another vent like this with a tee?

Doing a laundry sink and washer box along a horizontal 2” drain line. Do I need to vent the sink too.

Thanks for the quick reply.

This is the first time I’ve come across these fittings. Can I use copper crimp or stainless steel rings with this pex pipe system?

Thanks for the advice.

The pipes are 1 1/2"s.

Hi Demo'd a double vanity and discovered this layout. The double vanity is connected with a double Wye. Is this incorrect or should I be replacing with a double tee?

Assuming that the drain line is properly vented in the wall, is there a problem with a long tailpiece connected to a low p-trap? I can only guess that it was installed like that for looks but I don't know how it ever passed inspection. This was in a two year old house so I would think it was...

This is the second drain in a month I've seen like this. Is it legal?

My point was that the drain port at the main valve has little value. To drain the system, you would open up the closest faucet to the shut off and not bother with the drain port.

I really depends on your municipality. A stop and waste valve is required around here and the inspectors look for it. It hardly adds anything to the cost of the valve. I never seen the use for the waste port on the main line though. For a hose bibb sure but it would take hours to drain the...

You answered your own question. You use IC lights in an insulated ceiling and a non-IC light everywhere else. You can use an IC light everywhere else too but it is a waste of money. Insulation contact (IC) lights are designed to be air-tight so that it doesn't leak warm, moist air from the...

Wasn't this a day early for April fools?

I never meant to suggest using T-tape on a flared joint. NOTHING should be used on a flared gas connection. Neither pipe dope nor T-tape.

I've never used T-tape nor ANY of my licensed gas fitters but it is available. http://www.oatey.com/brands/harvey/products/thread-sealants/pipe-thread-sealants-tapes-lubricants-gaskets/harvey-ptfe-gas-thread-seal-tape...

I don't know about the rest of North America but around here you can get a cheaper pipe dope that is not approved for gas fittings. http://www.gfthompson.com/index.php/masters/masters-no-leak-detail You are right that the "gas approved" pipe dope can be used for EVERY thing else but the...

Follow the instructions that came with the kit. You only use GAS APPROVED pipe dope on the male threads screwing the adapters into the shut off and the regulator. Don't use regular plumbing dope; the gas can react with it. DO NOT use any pipe dope at all on the flared (beveled) end of the...

At least you could shut off the water by yourself. In these parts, you would have needed a curb key which I doubt most homeowners would have.

After everything has been aligned and tightened up top, I usually put a little bit of silicone between the floor and the back of the pedestal to hold it in place.

I thought p-traps with a union joint weren't allowed under the floor since it would be sealed in or is that just for ABS p-traps?