What to use to attach pvc to exertnal pump???
- Thread starter Bigfish93
- Start date
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PLASTO-JOINT STIK® | LA-CO
The LaCo PVC joint sticks are made specifically for plastic threads and can be found at most hardware, swimming pool or plumbing supply stores.
The LaCo PVC joint sticks are made specifically for plastic threads and can be found at most hardware, swimming pool or plumbing supply stores.
mfinn
likes zoanthids
I saw where you recommended this in a thread a couple weeks ago, but could not find it locally.
I ended up using Rectorseal.
I've never used glue on threaded pipes, just teflon tape. When you glue it in place, what happens when you want to take it apart?
mfinn
likes zoanthids
Who said anything about glue?
Teflon can cause cracking? ? Never seen that before.
mfinn
likes zoanthids
Too much tape can cause pvc fittings to crack.
It is what convinced me to use paste.
A few months back I took a closed loop pump out to clean it and when I reinstalled the threaded fittings and put new tape on the threads of the pump.
Everything normal, right?
Next morning ( 4 am ) when I got up for work my wife went out to start the coffee. I was barely out of the bed when I heard my wife yell,, OH Cr!!!!!.
I went out and there was water, 6' into the living room carpet and the dining room and kitchen floor had water everywhere.
The 240 was about 1/3 drained and the sump was dry.
With water everywhere, I found the source of the leak. It was one of the threaded fittings that I had replaced the tape on the day before. It was cracked and water was squirting out.
I've read about this happening to other people too.
I just figured that it wouldn't happen to me.
You've got to be kidding me. People using the whole role on the threads? In order th break a 3/4 or 1" pipe?? Thats just crazy.
mfinn
likes zoanthids
Really? How the heck does putting Teflon tape on threads to a pvc fitting break threads?? No chance. If you put the whole roll on, you'd never get the thing starting to thread.
Thank you, someone who knows what Im talking about.
mfinn
likes zoanthids
It can split the whole thing.
Dude, I can bench 400lbs, and I would have a hard time splitting the pipe using Telfon.
I've been a plumber for about 15 years and can tell you that pipe threads do indeed need either Teflon tape or rector seal to keep them from leaking. On my tanks I've never used anything but Teflon tape and in some cases with cheap molded plastics can split with only a few too many wraps of tape on them. I typically wrap about five or six times but with some pumps ten wraps feels like a more snug fit. Mag drives tend to seem more secure with ten wraps but I have split a mag drive pump by threading it to tight with the extra Teflon tape.
Ten wraps is far from a whole roll of tape
Copper, galvanized, black pipe, CPVC and PVC threads will all leak without some sort of sealant. The fittings can also all split if you over tighten them
Ten wraps is far from a whole roll of tape
Copper, galvanized, black pipe, CPVC and PVC threads will all leak without some sort of sealant. The fittings can also all split if you over tighten them
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mfinn
likes zoanthids
Thanks for that. I must just have gotten lucky through the years, I've never split a pipe using tape on it. I've learned on machinery not to over tighten things.
