Water loss / evap?

pkstylez

New member
Hey guys been watch my sump and measured it out so I can keep an eye on the water. I have 120 gallon tank is it normal to lose 1 gallon of water in about 2 or 3 days to evap or should I be looking for other solutions?

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Yeah sounds legit.. depending how close your lights are to the water, what kind of lights, but also if you got a lot of splashing from the down pipe to your pump.. it's a big reason why a lot of the fancy sumps also have a cover for the intake


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Yeah sounds legit.. depending how close your lights are to the water, what kind of lights, but also if you got a lot of splashing from the down pipe to your pump.. it's a big reason why a lot of the fancy sumps also have a cover for the intake


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Bad boy t5 I see humidity on the hood. Should just add 2 gallons of rodi to my sump or will that screw things up?

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The amount of water evaporation is normal for 2-3 days, I had a 125 and it evaporated at a slightly higher rate. Several factors contribute. Adding a gal or two in a 120g system should not lower salinity too much but keep an eye on it.
 
I lose about a 1.5 gallons a day so that is about right. It's a little concerning though that you are seeing humidity on the hood. I'd check into that. Maybe a small computer fan mounted someplace to move that air so you don't have humidity building up like that. If you are seeing humidity on the outside then most likely you are getting some on the inside as well. Just a thought.
 
I lose roughly 1/2 to 3/4 of a gallon a day on my 40b with 55g sump I do have very high surface turnover in both my sump and tank so that sounds about right, it's always worse here in the winter when the air is dryer. it'll drop come summer.
 
Should just add 2 gallons of rodi to my sump or will that screw things up?

IF you don't have an ATO (auto top off) system yet then you simply place a mark on the side of your sump in the return section to mark the normal water line.. Then you top off manually as often as you want with RO/DI water to keep the water at that level..

1G in a 120G every 2-3 days is actually really good (low).. Some people could loose 2+G a day on a tank that size..

As stated people will typically add an ATO system to avoid manually topping off daily..
 
In winter I loose for evaporation in my 90g, 9g for week, in the summer 18 or more....


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No problems there, but humidity on the hood tells me the rooms humidity is high, so keep an eye on room humidity as it can cause water damage to walls, windows and furniture/flooring. As stated, you are seeing low evaporation for the tank size, which also says the room humidity could be too high. when its near freezing outside I keep my house at 40-45% relative humidity.
 
Keep in mind that the amount of water lost to evaporation is a function of many things. The amount of surface area exposed to the open air and the relative humidity of that air and two major factors. The evaporation rate from my system declines by about a third during the more humid Summer months. Even though I keep the RH inside my house at 50% in those months, it is typically under 35% in the Winter. Right now, my 65 gallon ATO reservoir lasts about 10 days.
 
You need a freshwater auto-topoff to keep up. My 50 evaporated a gallon a day, no problem. If humidity becomes a problem a rollabout dehumidifier or your ac may help.
 
my basement 120g evaps 1.5g per day. Your evap seems LOW... indicates your room humidity is HIGH... might want to check that

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my basement 120g evaps 1.5g per day. Your evap seems LOW... indicates your room humidity is HIGH... might want to check that

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High humidity bad?

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