Osmolator and Basement sump

[JohnM99]

I am planning a 90 gal tank with a sump and refugium in the basement. I was going to place the osmolator sensor in the return compartment of the sump, and have the RO DI water about 2 feet below the sump and fuge - would it be OK to have the osmolator pump send water to the sump? Or do I have to pump it all the way up to the tank? I was also thinking of adding the Tunze calcium dispenser. Thanks.

 

[rvitko]

As long as the sump is above the reservoir it should be no problem.

 

[JohnM99]

Thanks, Roger.
What about hooking up directly to an RO DI unit, instead of a reservoir? I have heard that might not be advisable, as the RO DI units need to run for a minimum period of time - do you have any advice? I have just bought an RO DI unit that is only for the aquarium - I could direct its output into its own storage tank, but it would be much more "automated" to direct its return directly to the sump.

 

[rvitko]

It is not suitable for this application. It is far better to use the RO/DI with a spectrapure kit to automatically top off the reservoir. This will give you redundant safety and spectrapure's LLC kits are hard to beat.

 

[JohnM99]

Hmmm --- now I am a bit lost. Searching for Spectrapure on tunze.com - nothing. Checking a web store gives me a lot including this-
http://www.premiumaquatics.com/Merc...roduct_Code=SP-AUTO-SHUT&Category_Code=SProac

I have an AquaSafe ro/di unit - does this unit turn the ro/di on and off? Also, I don't know what LLC is - the page above refers to it, but I couldn't find it.

 

[JohnM99]

I found this one, which gives more info. - will the LLC unit fit on my AquaSafe?

http://www.marinedepot.com/a_ro_sp_ac_info.asp?CartId=

 

[rvitko]

http://www.spectrapure.com/St_alc_p1.htm

Single tank replenisher LLC-S. It should fit any RO unit- note the redundant safety of solenoid cut off and float valve.