Return Pump All Advice welcome

Hello all! I was woken by the sound of water hitting the floor as for my pump has chosen to start pumping water into the DT at a rate faster than what has been previously working in my full system. Some how it completely drained the bay in which it is submersed as well as taken my refuge down as well. I've been running this current tune up, or so i like to call it, for at least a solid week where I have been away from home as well as being here at home. Why now? Nothin has changed. I haven't added more water nothing is trapped, nothing was cleared out of the pump housing, I dont know any and all help is welcome.

 

What kind of overflow? How many GPH is your overflow rated for? How many GPH is your return pump rated for?

 

800 gph overflow with 2 90° running 1" schd 40 pipe and a 1086 gph return pump with 3/4" pipe with 3' of head and 4 90° bends and a gate valve to tune the system.

 

What kind of overflow? Drilled, Herbie, Non-Drilled...? Make sure that nothing (snails mainly) has clogged your drain pipe.

 

eshopps 800 series and no snails in my box

 

man, that sucks!