Emergency Return shut off or RO/DI auto top off

[DyM]

This is a DIY that worked flawlessly for 2+ years. I was using it with float switches in my sump to control auto top off. I have another unit built the same way without the kill switch that I used for my return pump.
This includes everything (except the lamp of course)
$40

I’m selling it because I purchased a Neptune Apex Aquacontroller in November which replaced this unit.

http://www.aquahub.com/store/media/TopitOffKitPremiumInstruxCompDec07.pdf
http://www.aquahub.com/store/media/TopitOffDelxSupplementCompDec07.pdf

 

[DyM]

This is the other unit, doesn't have the kill switch, as I used it for the return pump and could simply unplug it

$35

 

[DyM]

Received a good question via email, Yes, this prevents your tank from overflowing since it shuts of the pump between the sump and the display. I also had a line going to an airpump (Pentex B11) that would turn on if either I lost power, or the switch was triggered.