Top off water in sump question?

hawkfish203

Member
I am thinking of getting a automatic top off. If you top off the sump will it fill the tank also. Might be a stupid question sorry never fill from the sump always add to the tank. Thanks
 

al&burke

Active Member
Yes it will - the return in your sump will only show the loss of water from evaporation, that is where you should put your sensors.
 

flower

Well-Known Member

Well thats the way I fill mine. I marked the water line in the return and keep it at that level.
I have had nothing but trouble with my ATO, overfilling or not working so I just do top offs by hand for now until I figure it out..I'm not sure I even want to bother with the ATO it's such a pain.
 

al&burke

Active Member
Quote:
Originally Posted by Flower http:///forum/thread/383251/top-off-water-in-sump-question#post_3350520

Well thats the way I fill mine. I marked the water line in the return and keep it at that level.

I have had nothing but trouble with my ATO, overfilling or not working so I just do top offs by hand for now until I figure it out..I'm not sure I even want to bother with the ATO it's such a pain.
You should wait Flower, I think if you are still adjusting your flow on your returns it is going to change the level in your return. Once you have everything where you want it - leave it there, then set your ATO. Just my 2cents.
 

hawkfish203

Member
So you want to adjust your return so its a little high? Seems to me if you have it adjusted so it stays lvl how is it going to put water into the tank?
 

monsinour

Active Member
the return section of the sump is where the water level fluctuates. the overflow/drain from the DT fills the sump. the water level in the sump is set by the baffle height. the only place where the water level will fluctuate is the return section of the sump. Like just about everone else, I have marked the levels on my sump in the return section as to where the water will go when i turn the pumps off and where the water level has to stay above to prevent the return pump from sucking air. When I do water changes, the fresh water goes into the DT as this is where the old water comes from. I then do my top off into the return section and bring the water up to its highest point.
 

al mc

Active Member
Quote:
Originally Posted by Monsinour http:///forum/thread/383251/top-off-water-in-sump-question#post_3350541
the return section of the sump is where the water level fluctuates. the overflow/drain from the DT fills the sump. the water level in the sump is set by the baffle height. the only place where the water level will fluctuate is the return section of the sump. Like just about everone else, I have marked the levels on my sump in the return section as to where the water will go when i turn the pumps off and where the water level has to stay above to prevent the return pump from sucking air. When I do water changes, the fresh water goes into the DT as this is where the old water comes from. I then do my top off into the return section and bring the water up to its highest point.
I agree with this completely. I also put a timer on my auto top off unit and set it for 1 minute 3x daily. That way if the float fails to work properly to shut off the 'top off' flow it will not try the whole 39 gallon trash can I keep my top off water in which would in turn cause an overflow flood from my sump.
 

al&burke

Active Member
Quote:
Originally Posted by Al Mc http:///forum/thread/383251/top-off-water-in-sump-question#post_3350615
Quote:
Originally Posted by Monsinour
http:///forum/thread/383251/top-off-water-in-sump-question#post_3350541
the return section of the sump is where the water level fluctuates. the overflow/drain from the DT fills the sump. the water level in the sump is set by the baffle height. the only place where the water level will fluctuate is the return section of the sump. Like just about everone else, I have marked the levels on my sump in the return section as to where the water will go when i turn the pumps off and where the water level has to stay above to prevent the return pump from sucking air. When I do water changes, the fresh water goes into the DT as this is where the old water comes from. I then do my top off into the return section and bring the water up to its highest point.
I agree with this completely. I also put a timer on my auto top off unit and set it for 1 minute 3x daily. That way if the float fails to work properly to shut off the 'top off' flow it will not try the whole 39 gallon trash can I keep my top off water in which would in turn cause an overflow flood from my sump.
That is an interesting top off - what kind of a pump do you use for that
 
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