They really like cleaning up feces.

 

Or they like to use really really expensive glue

 

That isn't entirely effective because one material is a styrene and one is a vinyl.

 

They acquired it all for free.

 

free, leftovers,...

 

Oh okay. Probably into the scatology. Just checking to make sure I'm not crazy for thinking that was a little crazy!

 

http://www.irrigationdirect.com/irr...ct.com/irrigation-products-and-supplies/fittings/black-pvc-fittings-schedule-40

Here are some black pvc fittings for irrigation. I'd imagine they wouldn't be code for waste drains but probably don't differ much in reality

 

From the pictures on the site, those are the supply side design. DWV ones have more sweeping curves so stuff doesn't get hung up, and you can snake them easily. Just compare a regular DWV 90 with a supply 90 to see what I'm talking about.

 

Oh yeah you're right, didn't look too closely, just saw "black pvc" listed, which I'd never seen sold before

 

That isn't entirely effective because one material is a styrene and one is a vinyl.

That's how we switch from PVC below grade to ABS above slab - transition glue - and it's expensive compared to ABS and PVC glues.

We don't use PVC above grade in Ontario on plumbing drains

 

We quit using abs around here about 20 years ago for the most part any way,A few guys like it though.

 

That's how we switch from PVC below grade to ABS above slab - transition glue - and it's expensive compared to ABS and PVC glues. We don't use PVC above grade in Ontario on plumbing drains

Is pvc more susceptible to cracking when frozen?

 

I think it's more brittle period, doesn't matter the temps. Our PVC is all thin wall stuff, need to pack a solid base around it. SDR 35, you can have white or you can have green. Suppose to use green from outside of house to city connection at property line.

 

I thought abs was a little more brittle.

 

I find ABS takes a lot more abuse

 

are you sure its ABS??? is it grey or black??? ive seen grey pvc fittings from back in the late 1970's.....

to glue pvc into abs you need special glue....i dont trust the stuff and dont think its up to code...i use it in situations where i have no choice....cant see someone running the whole house in it....i doubt its code legal

 

Chris is comparing abs to pvc sewer pipe not sch40 or sch80.

 

My girlfriends house is like that some fricking yahoo did the plumbing, abs mixed with thinwall pvc leaks abound haha. Already put a new bath in for her and I aim to take care of all that when we redo the basement.

 

I could be wrong , but I thought my father inlaw told me all he could get in Oregon was ABS. Seems like you can always tell which modulars come from Canada , black vent pipes.

 

Different geographic areas often only carry one or the other. I have no good explanation.

 

This is the only time we change from PVC to ABS.

 

We change from the plumbers abs to sdr 35 when starting our septic or side sewer, but we always use a fernco for the change.

 

Probably because they used gasketed fittings and pipe instead of solvent weld and don't carry transition glue.

 

PVC is solvent welding (primer softens the pipe and the glue fills in any small spots)
ABS is actually glued together Transition glue is illegal here because of the above way they are joined and we must use a mechanical connection (strong back fernco or mission both are just brand names)

 

PVC is also solvent welded, you can fit pvc without primer in certain applications.

 

It's the ABS that is not solvent welded but rather glued, pvc without primer is because the glue has the softening solvent in it.

 

I hit the thank button instead of the quote...but no ABS is also solvent welded. It's basically acetone with plastic dissolved in it to give it body and fill voids.

Both abs and pvc glue are solvent cements.

 

The pipes I was originally posted about were actually vent lines, and they almost looked like they had opaque, white paint around the joints, and something clear like silicone... Do plastic vent lines need to be solvent glued or can they use silicone? (Like I've seen a lot of HVAC vents glued)