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Old 06/17/2019, 04:08 PM   #1
relatz
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Join Date: Jun 2019
Posts: 1
Baffle sizes for 30 gallon sump

my dimension are 36-1/4"L x 12-5/8"W x 16-3/4"H.

wondering what size to make the baffles.


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Old 06/17/2019, 06:33 PM   #2
TwoShoesOrOne
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Join Date: Jun 2019
Posts: 37
It's all math. First you have to figure out how much room to leave in the sump in case of pump and power failure so that whatever siphons down when the power goes off will not overflow the sump. (I installed a rely which cuts power until you reset it in case of power outage. If you lose the siphone the pump will overflow the display).

Now figure out how many gallons that would be and that will be the absolute max of the amount of water in sump. Math and measure. You will need 2 baffles at that height or less, as well as one at least 1" shorter plus one in the middle of that for the bubble trap.

Easy
(turn sideways)
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Old 06/17/2019, 06:35 PM   #3
TwoShoesOrOne
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Second baffle from top must be open 2" at bottom !!!!!

Quote:
Originally Posted by TwoShoesOrOne View Post
It's all math. First you have to figure out how much room to leave in the sump in case of pump and power failure so that whatever siphons down when the power goes off will not overflow the sump. (I installed a rely which cuts power until you reset it in case of power outage. If you lose the siphone the pump will overflow the display).

Now figure out how many gallons that would be and that will be the absolute max of the amount of water in sump. Math and measure. You will need 2 baffles at that height or less, as well as one at least 1" shorter plus one in the middle of that for the bubble trap.

Easy
(turn sideways)
_________________________ tank wall

____________________
______________
____________________



____________________


_________________________ tank wall



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Old 06/17/2019, 06:54 PM   #4
mcgyvr
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Location: North Carolina
Posts: 18,904
Yep...As tall as possible while still maintaining enough room for overflow..
If you have a skimmer make surr you have a section meeting its water level or higher as you can always raise a skimmer up if its too deep


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