Can someone with a newer house post a picture of how their A/C condensate line ties in to the sink drain? This is something I'm going to add soon, ours just drains to the outdoors along with the backup line. It makes a muddy mess and they go to the same pipe so I can't tell if there's a problem until it's already become a big one.

Just like this. Hose comes out of the wall and is clamped in to a tee on the drain downpipe.

hodgesco said:

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Good lord, that looks janky.

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That's not my house. I didn't feel like heading upstairs and taking a picture.

That's the way they look, but that install certainly looks sloppy!

So basically I'm looking for a tailpiece with a threaded opening on the side? Our old place had a flexible copper pipe like you see on water heaters screwed in somehow, I think after the trap, but am not quite sure what fitting to look for in the plumbing section.

Based on the pic (showing a hose clamp being used) I think you're just looking for an opening with a ridge (not threaded).

The Fife said:

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So basically I'm looking for a tailpiece with a threaded opening on the side? Our old place had a flexible copper pipe like you see on water heaters screwed in somehow, I think after the trap, but am not quite sure what fitting to look for in the plumbing section.

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You need a tailpiece like this installed BEFORE the p-trap:

http://a.co/2jxUgOd

They use the same ones as they use for dishwashers in the kitchen.
Its not legal by code but mine are all plummed to my gray water holding tank.

dlance said:

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The Fife said:

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So basically I'm looking for a tailpiece with a threaded opening on the side? Our old place had a flexible copper pipe like you see on water heaters screwed in somehow, I think after the trap, but am not quite sure what fitting to look for in the plumbing section.

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You need a tailpiece like this installed BEFORE the p-trap:

http://a.co/2jxUgOd

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Cool, that's what I was missing. Assuming they're available in 1 1/4" anyway...

The one in our old place was definitely threaded but it was also built in 1992. I'll just be happy to not have a huge muddy area in the yard, two A/Cs + a 90 point dehumidifier can kick out a lot of water.

Fife, here's 1-1/4" branched tailpipes but they're all in metal...

1-1/4" Branched Tailpipes

Home Depot has the plastic tailpipes

jaggiemaggie said:

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Home Depot has the plastic tailpipes

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Yes, but he was specifically looking for 1-1/4". I maybe wrong but I only find 1-1/2" in plastic tailpipes at HD...

Yep, it's gotta be 1 1/4" since this will tie in with the hall bath drain. I'll be at Lowes this afternoon and will have to wander around for a little bit to see what they have. I could always have it tie in with the drain inside the wall, but I'm not sure if that would be kosher or not.

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I could always have it tie in with the drain inside the wall, but I'm not sure if that would be kosher or not.

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Don't want to do that. It WILL eventually get clogged and you will want access to clear it out. I usually just hold the end of a shop vac to the end of the hose and close my hand around it. That will suck out any crap that builds up.

dlance said:

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I could always have it tie in with the drain inside the wall, but I'm not sure if that would be kosher or not.

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Don't want to do that. It WILL eventually get clogged and you will want access to clear it out. I usually just hold the end of a shop vac to the end of the hose and close my hand around it. That will suck out any crap that builds up.

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And the fact that if it's in the wall, it's after the P-trap, so you could get sewer gas going back up the line.

YellAg2004 said:

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dlance said:

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Quote:

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I could always have it tie in with the drain inside the wall, but I'm not sure if that would be kosher or not.

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Don't want to do that. It WILL eventually get clogged and you will want access to clear it out. I usually just hold the end of a shop vac to the end of the hose and close my hand around it. That will suck out any crap that builds up.

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And the fact that if it's in the wall, it's after the P-trap, so you could get sewer gas going back up the line.

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For some odd reason both primary A/C drain lines have little P traps in them. Not like it matters, they drain to the outdoors anyway. And both the primary and backups are right next to each other so there's nothing obvious that tells you there's something going wrong.