Sump going - Now I am scared!

waterbourn

New Member
I finally got my sump running. it is a 20 gallon with three baffles. I have a hang-on overflow box on my 55. Now that it is going, I am worried about flooding the house.
If the U-tube in the overflow looses its siphon and the pump continues to run then I guess I am screwed?? Is there anything I can do to prevent this?
I am also looking at the return pump in the sump and it is just barely submerged in the water. Right now everything is working good, but how about when I begin to get evaporation? Will the water evaporate enough to prevent my return pump from running correctly?
Thanks for your help!
 

pallan

Member
for my set up my return area will only pull so much water after a siphon loss once that water is pumped out it cant pump anymore (about 3-5 gallons) so at the most during a siphon loss i may get a gallon or two at the most on the floor. and i doubt even that.
as to your return pump water level if it is that low then you are over pumping your overflow. (pushing more water out than you overflow can replinish) you will need to find a balance install a valve in the plumbing from the pump to tank to controll your flow . you could also lower your overflow but that would mean more water for a flood should you get a power out.
make sure you do both a syphon loss test and a power off test to see what happens. be ready to contoll any floods with 5 gallon buckets and water pumps. once you get it set up right there should almost be no way to cause a flood other than the failure of your plumbing or a clogged pipe.
also make sure you have a hole drilled a little below water line of return line (in the tank) other wise during a power out you will get a reverse siphon and it will drain your tank from both directions to the depth of the return pipe. a hole will break the siphon and prevent this.
 

mag395

Member
I have the same worries. I bought a float switch. What it does is it shuts off the pump when the water level in the sump gets too low. In case of a siphon break, however unlikely that may be, the water will continue to be pumped up to the DT until the water level in the sump gets too low, switching off the pump. You can't set the float switch too high though because evaporation can also trigger it.
 

mikeyjer

Active Member
I just had a power outtage not that long ago....My goodness, it scared the heck out of me. I was too lazy to mess with the water level, but after that I took care of it...lol....Not too much of a mess, just a little bit. When I bought this sump/fuge setup, it already have a anti-siphon hole at the return pre-drilled. All I have to do is adjust the water level in the sump/fuge. I have never lost siphon in the U-tube. After power cuts out, it just sits there, when the power cuts on and water goes into the overflow box, the siphon starts all over again. I would go with a RR tank anyday! I made the choice with a RR for the new tank that I bought, I like it a lot better!!! :happyfish
 

thangbom

Active Member
a correctly set up system should never overflow the sump due to a power outage.. you need to adjust the overflow box and have anti syphone holes ( in my case i dont need them ) the 'u' tubes should keep it's prime when the power is out and restart as water starts flowing agin..
only reason why i dont need anti shyphon holes is because my return line and overflow is only about 2'' under surface lvl due to a spraybar.. which adds up to be around 25 gallons my sump/fuge when running has about 20 gallons so i have a good 5 gallon safty rage to play with..
 
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