How to connect new filter drain to existing drain
Posted by Tony Fenn on May 14, 2002 at 11:50:10:
I'm installing a new whole house filter. One of the stages is a carbon unit with auto back flush to drain. I have good access to existing drain lines in my basement. Can I somehow cut into an existing pvc drain pipe from a sink or tub for this new drain and make a connection ? How do I do this ? Will I also need some kind of check valve ? Thanks for your help in advance.

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