Now accepting brilliant ideas!!

[SeaHorse_Fanatic]

Originally Posted by Chin_Lee

Bigger the better for a sump IMO. I have a 180g sump

Agreed. I have a 75g sump for my 210g reef & if I knew earlier I was going to be tearing down the fw setups, I would have set up the 6' 110g as my sump instead. Even with a 48" by 18" footprint, I find I run out of room in my sump/refugium.

[Snappy]

What are you planning for an auto top-off, gravity or pump? My RO/DI res is about 25 gallons and I don't use a calcium reactor so I had an issue where my float swtich from the dosing pump would sometimes stick in the on position and as a result had a few floods. What I did to safe guard against this was I simply hooked it up to a timer so it only runs for a few hours at a time. I have it set for an intermitent 7 hours per day maximum so it keeps up nicely with the evap but can never overflow.
I don't know if this is relevent in your case but it's an idea some may not think of.

[Aquattro]

Greg, I have a bank of 5g containers that drain thru a float valve (gravity)