evaporation - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 8 Old 01-07-2007, 09:55 AM Thread Starter
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I am wondering how much evaporation you will get off tanks. I am concerned of to much moisture in my building. There will be about 3 4x8 ponds and 50 aquariums how many gallons of evaporation could i expect per week, day, etc?
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post #2 of 8 Old 01-07-2007, 11:57 AM

You have really got to be jerking on my leg!!!

You are "getting into that size of operation" and do not know how to calculate the mass of water evaporation due to reservoir volume, reservoir surface area, reservoir's temperature and relative humidity in the enclosure?

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post #3 of 8 Old 01-07-2007, 12:34 PM Thread Starter
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Im not opening the store I just lease buildings out. So I am just trying to protect my buildings. Can you supply me with these formulas & any thing that I need to be concerned about.
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post #4 of 8 Old 01-07-2007, 01:11 PM
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Thread moved to Starting and Maintaining a Freshwater Aquarium Section.

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post #5 of 8 Old 01-07-2007, 10:07 PM
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WOW! I get about 1 gallon a week from my uncovered 10 gallon tank. So I would guess about as much moisture as you could expect from a standard shower room in a locker room used daily by 25 people. Waterproof sheetrock, good bathroom paint and whatever else as well as a good mold inhibitor paint. If the building is brick then just some precautions for mold and such.

Might want to talk to a pool specialist to make sure as this is only my best guess.
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post #6 of 8 Old 01-07-2007, 11:59 PM
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While you may be able to get an idea of evaporation, there is no way to accurately calculate expected evaporation. There are too many factors that play into this role. Humidity levels, temperatures and temp fluctuations, ventillation, and even the differences in covering tanks with various different kinds of covers and light fixtures can make a difference. As weather changes, so will evaporation levels.

The best way to avoid property damage due to keeping this stuff is to make sure there is good ventillation and good circulation in the building. Controlling the temp will also help a great deal. Once these things are up and running, you can also monitor the situation and decide whether you need to add dehumidifiers or humidifiers to help with any problems. You will find that different months of the year will change the conditions indoors a great deal because of weather changes.

Dawn Moneyhan
Aquatics Specialist/Nutritionist
Juneau, WI
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post #7 of 8 Old 01-08-2007, 03:35 AM
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Originally Posted by bettababy
While you may be able to get an idea of evaporation, there is no way to accurately calculate expected evaporation.
I was thinking of this exactly as I had thought there is no way we can measure evaporated water in our environment.

Your post seems to have covered everything about evaporation.

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post #8 of 8 Old 01-08-2007, 08:42 PM
There are formulas to calculate evaporation. I have looked through all ofmy books. I used to design multi sstory buildings for an archetectural firm. I cannot find them at this time. I do know that evaporation depends on ambient temperature and relative humidity. Air can only hold so much water. This varies on ambient temperature. 65% humidity @ 70 degrees Fahrenheit is not 65% @ 85 degrees Fahrenheit. If I find the formula, I will post it. You can always use a dehumidifier and drain it to your storm system.
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