6055 minimum depth

[Toddah]

I have 2 6055's that I plan on running in my 54 corner tank. How deep do I have to run the pumps so they will not cavitate when running full throttle?

I am also torn as to weather I would be best off running one on each side in the rear of the corner tank and having it blow along the glass wall pointing toward the front curved wall or if I should mount them in the top front corners pointing across the front curved glass? I plan on running in about 10 minute opposing cycles from 100% down to 30% while the other pump is doing the inverse.

Thanks for any information you can input.

 

[rvitko]

I find that full power they should be at least 5" below the surface. I agree with the programming but as far as position they are easy enough to move so I would just see what works best.

 

[Toddah]

Thanks Roger,
Knowing that (5") helps alot. I am replacing a 33 cube with a 54 corner and I want to impliment the 2 6055's when I do that. I have always been a DSB kind of guy but now I am a little leary of the DSB with the power of the Tunze in that little tank. I bought them because of the spread pattern and the controllability and I want to keep SPS so the 6055 is a good fit but having never seen a 6055 IRL I just don't know how to coralate the pictures of the flow patterns to the real life flow.
Currently I am running about 900GPH return from my sump and 2 SEIO 620 in the Oceanic 33 drilled tank with a 5" DSB and I just have the normal "migrating" sandunes but no sandstorms.
In my past expirence with DSB after a few weeks the sand sort of settles and things are great but with the blessing of the speed control I am not sure things would ever reach the settled state?
What do you think?

 

[rvitko]

You can set the pumps flow as low as 250gph so I don't think there should be any issues, you can also angle the flow up.

 

[Toddah]

That was my plan, setting the pumps about 1/2 way down the glass in the back corner and having them push up and toward the front top corner. I was hoping to get the entire tank flowing in one direction and then as the pumps invert there duty cycle I woul dhope to see the tank flow reverse direction.
Thank you very much for the input. I appreicate your help.