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Proper way to vent?

2K views 1 reply 2 participants last post by  Ron6519 
#1 ·
Renovating the [COLOR=blue ! important][COLOR=blue ! important]basement[/COLOR][/COLOR] - Canada

Opened up a wall and the washer, RO waste water line and the line from the water softener all go into the top of an an open 1 1/2 " drain hose.

4" down the drain hose a sink with ptrap

Then the line goes under the [COLOR=blue ! important][COLOR=blue ! important]concrete[/COLOR][/COLOR] and ends up coming out inside a floor drain.

This drain hose isn't vented and I am wondering if it needs to be and if I need to ptrap the washer/RO/softener lines?

Here is a picture...
 

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#2 ·
The blue stuff is unintelligible.
What's the pipe going off to the right. Isn't that a vent? If not, there should be one. What other plumbing do you have nearby?
Ron
 
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