hang on overflow backup idea

[pandafishowner]

there's water damage in the basement from it. it floods in the rooms upstairs and then comes and floods my daughters room downstairs.

[fkshiu]

I plan on simply using 2 HOB overflows - a Lifereef and a cheaper Hurricane as a "backup" (although both will end up flowing about equal amounts).

I'll be using an Eheim 1260 as a return (~450 gph at a 4' head) so either overflow can handle the load even if the other is completely shut-down (Lifereef 600 gph max flow, Hurricane 500 gph max flow).

Both overflows are the more reliable u-tube design and since I picked both up used, cost is very reasonable for the resultant peace of mind.