How to make removable PVC connections

[Alchemizt]

Gluing everything together, the issue I have is that when I need to change things later on, I have to cut the pipe and its sometimes I have to throw away joints and valves because theyre all glued together. What would be a good way to make non permanent connections? Is this what compression couplings are for?

 

[Breplum]

Compression couplings want to blow out readily and do not hold unless they have some secure way to block blow-out.
Thrust blocking is the only good way to prevent such.
Threaded brass or S.S. with unions is the only way to easily take apart.

 

[Sponsor]

 

[Alchemizt]

Compression couplings want to blow out readily and do not hold unless they have some secure way to block blow-out.
Thrust blocking is the only good way to prevent such.
Threaded brass or S.S. with unions is the only way to easily take apart.

Ah I see. What about threaded PVC, is it completely unreliable?

 

[Breplum]

threaded is not reliable in my experience for multi use.

 

[Reach4]

Gluing everything together, the issue I have is that when I need to change things later on, I have to cut the pipe and its sometimes I have to throw away joints and valves because theyre all glued together. What would be a good way to make non permanent connections? Is this what compression couplings are for?

Pressure plumbing or drain/vent plumbing?

If DWV, https://www.charlottepipe.com/Products/Assets/02C-PVC_List_Price/CTT-818 (5-7-21).pdf is a possibility. Premium price, but you can undo or rotate.

There are also PPI Glueless Soundproof fittings. I think those are cheaper. https://www.homedepot.com/s/ppi Glueless Soundproof?NCNI-5

For pressure pipe, there are more push-fittings available for CTS (copper tubing size) pipe. CPVC is CTS, as is PEX. And of course copper pipe is CTS.