Connecting frag to display with two pumps pumping back and forth

[Aere]

Two pumps. Back and forth. With two float switches on each end for redundancy to shut off if water level gets too high. Is this a bad idea?

I have a 300g display tank. And in another room I have a frag tank. I ran pex piping between the two. Can click my build thread badge next to my name to get a better idea with pictures.

I have two vectra L2 pumps.

I want opinions here. I would really like to plumb these together. My LFS thinks I'm nuts. But a couple people I ran it by seems to think it'll be fine. And I test ran it with brutes and it definitely works. I figure if I keep an eye on it it should be fine. But not sure. Anyone ever successfully do this? Without draining tank on the floor.

 

[SteveMM62Reef]

Could you do a Gravity Flow from your DT to the Frag. Tank, then Gravity feed that to your Sump? For extra flow in your Frag. Tank use some “Wave” Pumps.

 

[Aere]

Could you do a Gravity Flow from your DT to the Frag. Tank, then Gravity feed that to your Sump? For extra flow in your Frag. Tank use some “Wave” Pumps.

I can't. It goes up through the ceiling. The pex is buried in the wall and ceiling, into the other room. About 7 feet up, 15 feet across and then down. Both runs the same. Back and forth. I was going to throw a pump in each systems sump and pump back and forth. That's my thought process.

 

[Aere]

Figured I would add pics.

Can see the frag tank, and in the back the red and blue pex. Then me standing in doorway to the fish/utility room showing distance. Then my sump in display tank with the pex coming out between the co2 scrubber and trident.

 

[DaneGer21]

Usually I would say no to this idea. But, if it is your only method then make sure you implement your float switches(multiple ones) for fail safes.

At my last home I wasn’t able to tie them together either, I ended up just having two separate systems.

 

[Aere]

Usually I would say no to this idea. But, if it is your only method then make sure you implement your float switches(multiple ones) for fail safes.

At my last home I wasn’t able to tie them together either, I ended up just having two separate systems.

It's definitely not my only method. I could definitely have two separate systems. I would prefer it to all be one body of water for many beneficial reasons. But I just want to make sure I'm not over looking anything. I plan on having two optical float switches on each side for redundancy. It will all be controlled via apex, breakout box, and their optical float switches. I already have all the necessary equipment to make it happen. Honestly I'm looking for someone to talk me out of this or I'm going forward with it. I guess worse case scenario if it doesn't work I just have two separate systems.