How can I UNglue pvc from a sump?

Lance Umansky

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I have just one pvc piping going to my sump I'd like to remove. I'm moving the sump to a new tank. What solvent can I use if any that will work that I can easily get?. I can do this with no water in it, after I cut the pvc with a cutter.
TIA
 
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vetteguy53081

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I have just one pvc piping going to my sump I'd like to remove. I'm moving the sump to a new tank. What solvent can I use if any that will work that I can easily get?. I can do this with no water in it, after I cut the pvc with a cutter.
TIA
Not worth it. Best recourse it to use pvc cutters and cut at coupling and add new coupling and reglue.
 
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Lance Umansky

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Not worth it. Best recourse it to use pvc cutters and cut at coupling and add new coupling and reglue.
or cut so there is a few inches of pvc coming out of sump couping (drain intake) and then put a coupling on top of that piece of piping, and connect that to new tank?
 

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or cut so there is a few inches of pvc coming out of sump couping (drain intake) and then put a coupling on top of that piece of piping, and connect that to new tank?

Add a union for future removal...
 

vetteguy53081

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Add a union for future removal...
Which is what I did.

1654909304075.png
 
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Lance Umansky

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Thanks for the advice. But I'm really pre novice when it comes to plumbing. I need very basic terms.
Would this be ok?: cut the piping going into the sump so there is a few inches of pvc left going into it? (drain intake) and then put a coupling on top of that piece of piping, and connect that to new tank? I doubt I'd change tanks again for a very long time (the first tank was a total mistake). So I wont need a union.
 

gbroadbridge

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Thanks for the advice. But I'm really pre novice when it comes to plumbing. I need very basic terms.
Would this be ok?: cut the piping going into the sump so there is a few inches of pvc left going into it? (drain intake) and then put a coupling on top of that piece of piping, and connect that to new tank? I doubt I'd change tanks again for a very long time (the first tank was a total mistake). So I wont need a union.
Unless there is no physical room for a union, I'd still put one in rather than a direct coupling.

You just never know ...
 

Woodyman

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Thanks for the advice. But I'm really pre novice when it comes to plumbing. I need very basic terms.
Would this be ok?: cut the piping going into the sump so there is a few inches of pvc left going into it? (drain intake) and then put a coupling on top of that piece of piping, and connect that to new tank? I doubt I'd change tanks again for a very long time (the first tank was a total mistake). So I wont need a union.

You say that now.... Save yourself the headache and spend the extra ~10 bucks.

Edit: you can get the thread x slip adapters for $1.17, and the union for $9.11.

The extra $11.45 is worth the future piece of mind and time savings.
 
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Woodyman

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Thanks for the advice. But I'm really pre novice when it comes to plumbing. I need very basic terms.
Would this be ok?: cut the piping going into the sump so there is a few inches of pvc left going into it? (drain intake) and then put a coupling on top of that piece of piping, and connect that to new tank? I doubt I'd change tanks again for a very long time (the first tank was a total mistake). So I wont need a union.

I'd also go with threaded unions like Vette showed above. This way when you eventually cut them back far enough that you can't add a coupler, you just unthread it and get a new ~2$ thread adapter vs a whole new union.
 

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Even if you put a union you have to glue half of it on. You would then have to cut it off because to replace the bulkhead the 1/2 of union glued on won’t fit through the hole.. Cut the pipe as long as possible for future changes, if any. You could always get a new bulkhead, which is probably what I,d do if the bulkhead has some years on it anyway
 

Woodyman

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Even if you put a union you have to glue half of it on. You would then have to cut it off because to replace the bulkhead the 1/2 of union glued on won’t fit through the hole.. Cut the pipe as long as possible for future changes, if any. You could always get a new bulkhead, which is probably what I,d do if the bulkhead has some years on it anyway

Why you should go with the threaded ones. You save the union by unthreading, and just cut off and buy another slip x thread adapter for ~$1
 
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Lance Umansky

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sorry took a while... here's a pic of it. i'm hoping with a lot of luck to have the new tank set up by end of weekend somehow. :-D TIA
 

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You can't unglue it if it was done properly. The glue literally heats up and melts the pvc together.
Back in the day it was said you could only use the purple or blue rain stuff but now days everyone just uses whatever.
Lol.
+1 you'll have to cut it and +1 on the threaded fittings if you wanna re use something expensive like a true union Gate or ball.
D
 

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A heat gun applied directly to the joint will break the bond on PVC glue to PVC. Five minutes or so should do the trick. In the absence of a heat gun, I’ve used a powerful blow dryer 2000 W or so for a little longer.
Not if it was cemented correctly. A PVC join is a molecular bond that cannot be broken.
 
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