Thanks for the replies.
The sump is not overflowing at all, the wet/dry wants to overflow. Which is where the water is going into first. The. The water drains into a sump via (5) 1" bulkheads. the water level in the sump is steady, going over the micro-bubble wall nicely. The restriction appears to be as it enters the sump.
Last night I drilled (2) 2 3/8" holes in the baffle plate of the sump and that prevented the wet/dry from overflowing, but only by an inch from the top. I added a mag 500 to pump water from the wet/dry into the sump and that lowered the. Water to about 3"-4" from the top.
I feel that if the sump were too small the water would be overflowing there and not the wet/dry.. And if the nag 2400 were too small it would create the same issue. Since the pump is keeping up, it's safe to say I'm not draining 3200gph, @ least INTO the sump.
For the record, I have a Rio 1200 on standby piped on it's own 1" PVC
supply to supplement the mag 2400, I just haven't needed to turn it on at this point.
Here is some advice I can pass along to whomever reads this. I have my filter and sump sitting in a secondary drain pan that is PVC
drains to my basement drain. This way if my filter or sump does want to overflow due to a failed pump, it will flow into a pan and straight to the drain. A principle I employed from attic air conditioner installations so water doesnt fall through people's ceilings.
Let me know what u guys think..