Evaporation: A Full time job?

[AquaSquid]

I have a 75gal tank with a 20gal long sump/refugium. I am having to add around 1gal of RO/DI almost every day. Is this normal? Any suggestions?

[graphixx]

oh man your lucky, between all of my tanks I am topping off approx 4 gallons of water every morning. yep its normal!!

[Tom McKenna]

Normal for sure !!

[dakar]

Now you see why we invent auto-top off systems, our largest tank evaps over around 5 gallons a day so you are well within the 'normal' range.

[perpetual98]

Sounds about right. I couldn't tell you how much I go through, since my auto topoffs are tied directly to my RO/DI unit.

[davejnz]

My 40 evaporates about 1.5gal per day.

[Reptoreef]

happens and is good for proof of gas exchange and ability to add kalkwasser with evaporation... 2-3 gpd here(Utah's pretty dry).

[Whoyah]

A gallon a day is right on. I have a 75 display and 20 sump too.

[AquaSquid]

Whoyah, I am happy to hear that you have the same set up as me 75gal/20 gal. Could you let me know a little more about your specifics. How long has the tank been up? How is the sump set up? Do you run a refugium? What type of skimmer, and lights? What kind of critters Etc.?.....

[AquaSquid]

Whoyah, I almost forgot. What problems have you had? What would you have done differently? I'm still in the early stages of set up and cycle so this would be a big help. Thanks.