How much does your tank evaporate?

[rcpalmer1]

I am building and new system. It is a 120 gallon rimless. I am building a custom top off/dosing container. I am trying to decide on dementions. Please tell me the size of your tank and if it has a canopy or hanging lights.

Thank

 

[najer]

550 litre water volume about 2 US gallons a day.

 

[Swoody]

135gallon, euro braced top, no hood, LED light bar 1" above opening full length of tank...40g sump uncovered...In Arizona ~2g per day + -

 

[rcpalmer1]

I was thinking 5 gallons but now I am thinking I may need more like 15 gallons.

 

[ReeferBee]

150g covered with glass tops I lose about .5-.75 gallon a day

 

[diablomaster9045]

200g hooded with metal halides and VHO's ~4-5 gallons a day. I have a 25g reservoir that gets automatically refilled by a ro line.

 

[azbigjohn]

I live in Arizona, and use fans, not a chiller, to keep my tank at temperature, so the hotter it is, the more I evaporate.

210 gallon aquarium, 6 ft x 2 ft, open top (with mesh screen) and LEDs. I lose between 2-5 gallons a day, depending on how hot the house gets...

 

[happyhourhero]

My 65 uses about 1 gallon a day.

 

[rcpalmer1]

I am in Florida and have a Kessil AP 700. 2x4 tank.

 

[outeastreefer]

my tank is 300 gallons 150 gallon sump in the basement. canopy yes, lights are ATI t5 6x80watt, and pacific sun hyperion led. I would say around 5 gallons a day more or less evaporate. depends on the temp of the house.

 

[rcpalmer1]

Ok, after taking in everyone's feedback I am no longer adding a a reservoir under my tank. I have two aquariums. One is 55 gallon and the other is 120 gallon. The smaller one I have been just manually topping off. My new plan is to add a Brute can on a stand next to my RO station. I am going to pipe it to both sumps and just put float valves in each one. I am also going to pipe it to my mixing container so I will have 30 gallons of RO water ready when I do my water changes.

 

[Flippers4pups]

The amount of evaporation is relative to the humidity of the surrounding air and air temperature, tank size and total water volume vs the tank water temp. Each system is different.

My system: 125 gallon DT with canopy running 2 120mm computer fans, 3 165w led fixtures, 125 basement sump. Total water volume of 180 gallons.

Upstairs room temp average: 75 Fahrenheit.

Basement sump room temp average: 72 Fahrenheit.

Average humidity in house: 30-45%

Average top off in gallons per week: 6-8 gallons using electric float switch, 16 gallon ATO container.

 

[Flippers4pups]

Ok, after taking in everyone's feedback I am no longer adding a a reservoir under my tank. I have two aquariums. One is 55 gallon and the other is 120 gallon. The smaller one I have been just manually topping off. My new plan is to add a Brute can on a stand next to my RO station. I am going to pipe it to both sumps and just put float valves in each one. I am also going to pipe it to my mixing container so I will have 30 gallons of RO water ready when I do my water changes.

If your planning in using gravity fed float switches for top off, be aware that they can fail and flood your tank. If you go this way, keep your ATO container small in volume in relative size to your system total volume and have enough room in the sump to hold all of the volume of the ATO container if the float switch fails.

Many reefers have gone to redundant electronic float switches to control top off for this reason. (I did back in the early nineties after a gravity fed float switch failed, flooded my living room and crashed my tank)

 

[tsav87]

Maybe plumb the larger reservoir to a smaller reservoir at each tank. Put ball valves to fill up the smaller reservoir once or twice per week. That way if something fails, it won't be a catastrophe.

 

[rcpalmer1]

My original plan was to have a 5-10 gallon reservoir. After most of the response was over a gallon a day I was going to change to something larger. I want something that can handle at lest a week. I have some float switches. I just ordered a solenoid valve. I will see about maybe putting in float switches in both sumps that will close the valve at the tank if either water level rises and set off an alarm. I will see what I can wire up next week when it comes in.

Thanks everyone for the feedback.

 

[FMF0331]

Rimless 200 gallons . No canopy ( hanging lights ) 4 AI hydra 52 , evaporates 2 gallons a day

 

[Mal11224]

For my 70 gal rimless, about 3 liters. When it's hotter, close to a gallon.

 

[EJMaguire]

I am building and new system. It is a 120 gallon rimless. I am building a custom top off/dosing container. I am trying to decide on dementions. Please tell me the size of your tank and if it has a canopy or hanging lights.

Thank

If you need a custom top off system, I just built my own with arduino + 3D printing!