Difference between 1.5" and 2" drain in overflow

[sphelps]

Originally Posted by Reefer Rob

What about eliminating the 2" standpipe inside the overflow. This should increase the flow potential and reduce detritus buildup in the overflow... just a thought.

If you did this then the full overflow box would drain when the flow is shut off, not always a good thing unless you have the sump volume, but an option for sure.