float valve in the sump

[hijinks]

Float valve might not be the correct term but my tank is not RR so I am creating a pvc overflow device that I have done in the past that didn't lose siphon for a few days.. (it was a mechanical engineer class in college)

So I am looking to create an overflow proof tank. My idea is to place the water pump at around mid-level in the sump so if I lose siphon it won't pump back all the water in the sump. Now if i lose siphon the pump will probably die if it happens while I'm at work due to sucking in air. So I'm looking for a float valve that will turn off the pump if the water level gets too low in the sump.

Anyone hear of such a thing or even try it?

 

[Keith P]

You can use something like this, but in reverse.
http://www.autotopoff.com/products/SS1/index.htm

So when the water rises, the pump will cut off.

I'm going to use a system like this in my display tank, in case the overflow/drain clogs.

 

[Pareef]

What your saying is possible if you went to lowes or home depot and looked at the submersable sump pumps most work off a float switch to turn the pump on and off finding a scaled down version for your sump should be possible

 

[Aqua Pro Builder]

Float valve might not be the correct term but my tank is not RR so I am creating a pvc overflow device that I have done in the past that didn't lose siphon for a few days.. (it was a mechanical engineer class in college)

So I am looking to create an overflow proof tank. My idea is to place the water pump at around mid-level in the sump so if I lose siphon it won't pump back all the water in the sump. Now if i lose siphon the pump will probably die if it happens while I'm at work due to sucking in air. So I'm looking for a float valve that will turn off the pump if the water level gets too low in the sump.

Anyone hear of such a thing or even try it?

Flost switch(not valve-valve is controlling liquid while switch for closing or opening a circuit) with a power relay will get your job done.