Is one hole 1" and the other is 1-1/2" or are they the same?
If they are different us the bigger of the 2 for the emergency and put the gate on the smaller of the 2. If they are the same keep the pipe size the same if you can.
Oh, and welcome to Canreef!!
Last edited by parkinsn; 01-16-2012 at 06:04 PM.
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