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  #1  
Old 01/09/2008, 02:54 PM
kielty kielty is offline
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Join Date: Dec 2006
Location: Sarnia, Ontario
Posts: 68
Average daily evaporation for a 4'x18" surface area

Wondering what you guys are experiencing for an average
daily vap. rate for a 90 gallon tank with two MH's ...
Trying to figure out return section capacities and would appreciate any inputs as far as what is a normal daily loss.
Obviously higher in the winter but looking for some ball parks.
Thnks in advance

Cheers,
Brian
  #2  
Old 01/09/2008, 03:03 PM
seapug seapug is offline
clams are your friends.
 
Join Date: Dec 2006
Location: 4980 ft.
Posts: 1,836
I have the same tank/light setup and I lose anywhere between 1/2 and 1 gallon/day depending on whether or not I'm running fans.
  #3  
Old 01/09/2008, 03:15 PM
kielty kielty is offline
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Join Date: Dec 2006
Location: Sarnia, Ontario
Posts: 68
Do you run your fans (or one of them 24/7) are you losing more
with the fans on (more air movement) or with the fans off
(more heat/more evap.)??? Sorry for the newbie question?
  #4  
Old 01/09/2008, 03:21 PM
not_sponsored not_sponsored is offline
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Join Date: May 2007
Location: Hawaii
Posts: 114
I lose about 3/4 of a gallon a day with no fans.
  #5  
Old 01/09/2008, 03:28 PM
seapug seapug is offline
clams are your friends.
 
Join Date: Dec 2006
Location: 4980 ft.
Posts: 1,836
running fans will increase the amount of water you lose to evap. I run fans when needed to keep the tank cool on warmer days.
  #6  
Old 01/09/2008, 03:32 PM
kielty kielty is offline
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Join Date: Dec 2006
Location: Sarnia, Ontario
Posts: 68
thanks for the replies
  #7  
Old 01/09/2008, 06:10 PM
LobsterOfJustice LobsterOfJustice is offline
Nothing to put here
 
Join Date: Jan 2004
Location: Wilmington, NC
Posts: 2,989
I think I lose 3 or 4 gallons per day, but I have additional surface area of 2 30 breeders and I run fans constantly.
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