Single pipe parrallel to single pip counter flow

Ed_9

Was wondering if I can do this. I want to finish my basement and the return side sits lower than the supply side and takes up some much needed headroom. Just curious before I call someone in. Would it be possible to just cap the end of the main run and vent it (of course make sure it's pitched back properly)?

Unknown

If you increase it's size you can

otherwise there isn't room for the condensate.

Noel

Steamhead

There's more to it than that

You would need to install a new main that is one pipe size larger. The existing main was not sized to allow condensate to flow back against the steam.

A better solution might be a "rise and drip" where the level of the main is raised, and the low point gets a new "drip" line to drain any condensate that might accumulate there.

This is a job for a pro. Go to the "find a Contractor" page of this site to locate one near you.

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