Which PVC Pipe?

[robertifly]

Which Schedule PVC pipe do most people use to plumb the drains and closed loop? The thinner drainage type or sch 40 or 80? I am mostly talking about 1.5" and 2".

 

[eep013]

I've never had a reason to use PVC pipe and fittings larger than 1", but I've used schedule 40 almost exclusively with no trouble or leaks.

 

[MCary]

It doesn't matter, neither is a pressure application. Thinner wall pipe is easier to work with and gives less restrictive flow.

 

[robertifly]

That's what I've been thinking, MCary. easier, cheaper, both need proper bracing. What about any difference in the noise dept ? How about some more testimonials?

 

[flyingclay]

watching this thread, I need to use 1.5 and 2 inch as well, thanks

 

[corndogg]

No advantage to schedule 80. It just costs more for our purposes.

 

[das75]

If my 1.5 and 2" isn't Spaflex, it sched 40. Can hear water flowing through it but don't have 80 to compare.

 

[AQUAN8TOR]

The "thinwall" you're talking about is not schedule 40 or 80, but rather 10 or 20. I've never seen it commercially available, but it is in 1" pipe---a 1", schedule 10 drainage pipe is close to 1.25" in diameter. Just be forewarned that if you bend a glue joint, it is much more likely to fail when using thinwall pipe. I might suggest using flex PVC(spaflex) cement if you're using this or other thinwall pipe. It stays a little more flexible. Don't forget primer. Use clear if you don't like purple.

 

[bundybear1981]

I've found for our use the cheapest stuff I can get is great. It doesnt need to hold pressure (its only used to direct water, not under load) I'm only running 1" PVC (for the closed loop on my SCWD) but it would be esensially the same for the 1.5" and 2"

 

[robertifly]

My wife works where they sell pipe and she says they have 3 grades of pvc for water sch40, something called cell core? or 200, and then the thinner drainage and sewer pipe, all which fit and glue into sch40 fittings. I'm a guy that usually likes to "over build" for strength, (do it right and do it one time) but I'm really considering stepping down from sch40 pipe this time. How about it, anymore experienced peoples opinions of this?

I am using SpaFlex for the 4way connections to the tank for ease and less restrictions.

 

[Fishingpcola]

Glasscages drilled my tank for sch 80. It is a lot heavier. A friend of mine had sch 40 and it cracked.

 

[MarkS]

<a href=showthread.php?s=&postid=12847365#post12847365 target=_blank>Originally posted</a> by Fishingpcola
Glasscages drilled my tank for sch 80. It is a lot heavier. A friend of mine had sch 40 and it cracked.

You're talking about the bulkhead fitting. That is a different discussion. Schedule 40 pipe is the best overall for the price and structural strength.

 

[hahnmeister]

For bulkheads, Im starting to think I might want to just use uni-seals on my next tank over any bulkheads, even heavy duty.