plumbing shop air

by chuck
(michigan)

when plumbing the main supply is it a good idea to make a complete loop to keep air flow even all the way around the system? Then make your drops off from this loop?

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Bill says...

Absolutely. If you look at all of the pages on this site that refer to this subject, you will see that they all agree with you.

The "ring" should slope slightly to one corner so that all the water can run to that point and then into a drop line with a drain.

Make sure to take all of the other drops off the top of the main so the water can't flow down into them.

Cheers,

Bill