Connect ABS toilet flange to ABS drain pipe

[Lfforte]

I am connecting a 3” closet flange into a 3 “ ABS drain pipe. The fitting is loose not tight. I’m afraid that if I use ABS cement it won’t seal. Is there another way other than using ABS cement? I found that Lepage Pl700 can be used fir ABS.

 

[Cjlambert]

“Into” or “onto”? Are you using a cheater flange, that slides into the pipe? Or a regular hubbed toilet flange, that slides over the pipe?

Manufacturers state that a hubbed fitting should engage about 2/3rds of the way onto the pipe easily when dry fit (no solvent). The last 3rd of the engagement should be difficult.

How loose are we talking here? If it slides on all the way easily, and spins fairly freely, its not recommended by the manufacturer to use. But I can tell you from experience, it’ll be fine. Just be liberal with the solvent.

Either way. The only correct way to adhere an ABS fitting to ABS pipe is to use ABS solvent.

 

[Sponsor]

 

[Reach4]

A 3-inch inside glue-in toilet flange expect the ID to be about 3.042.

If you are using some thinner pipe, you will want to use a different flange.

 

[Lfforte]

Thank you for the quick replies. I am usin a 3" flange that fits inside the drain pupe. I can't use a standard 4x3 flange.

 

[Lfforte]

The flange fits inside but it's not a tight fit

 

[Cjlambert]

Glue it, fasten it to the subfloor, good to go.

 

[Lfforte]

Glue it with ABS cement?

 

[Cjlambert]

Yes

 

[Lfforte]

The gap is about the thickness of standard size paper

 

[Cjlambert]

Just want to do my due diligence - and re ask the question I already asked you. How loose are we talking here? Is there side to side play on the fitting inside the pipe? Or does it just spin easily?

 

[Cjlambert]

The gap is about the thickness of standard size paper

Okay. I would glue it, screw it, and put my name on it. While the “weld” the solvent is supposed to create likely won’t happen, the solvent will still fill that tiny “paper thick” gap and keep a seal. The screws to the subfloor will keep the flange in place. You’re fine, go for it.

 

[Lfforte]

I can turn the flange. The gap is about the thickness of standard letter size paper. If I tape a piece of paper around the flange it seems to close the gap

 

[Lfforte]

Okay. I would glue it, screw it, and put my name on it. While the “weld” the solvent is supposed to create likely won’t happen, the solvent will still fill that tiny “paper thick” gap and keep a seal. The screws to the subfloor will keep the flange in place. You’re fine, go for it.

 

[Lfforte]

Thank You. I will glue it with abs and screw it to subfloor. That's what I was think but wanted someone with more experience to cofirm it. Thank you! Just wondeting if Gorilla glue woula also do the job

 

[Cjlambert]

The only correct way to adhere an abs fitting to abs pipe is to use abs solvent.

That being said, there are a variety of adhesives that would likely do the same job.