What kind of overflow pipe for the 187?

[FishyFishy!]

Well the return pumps are plumbed from the sump. Still not sure which way to go on the drain. Good thing I have the next 4 days off work! hehe.

I did mock up an emergency drain using the 1" hole from the former return. I highly doubt it would 100% keep up to the flow from the returns, but least its there. I might just do a durso for now, and see if I like it.