Sump Shut off switches

[jdmara]

First of all, Thank you for taking a peak at my question. I have been reading the posts on this site for awhile but never had posted.

I currently have a 29-gallon saltwater with a 29-gallon sump (although the sump isn't really hooked up...it's still in the works). I've done all the plumbing using pvc and a lot of time. I have check values in case the power goes out and such but I have not purchased any switches yet to turn the pump off if the water in the sump gets too high or too low. Do you all recommend a particular switch and relay setup? I see that some sites sell "aquarium switches" but I've heard that the relays go bad easily. I want a set that will last me awhile. Thanks for your help

-Josh