Top off fail safe wiring.

[Mat1018]

Need some help. I'm running a normal 12v float switch to 120v pump. So the same set up as the aqua hub top off. So the question I have is I want another fail safe set up. What I want it to do is use another float switch in the sump that if the planets a line and both my overflows clog, I want a low level switch that will cut all power to the top off set up with a manual reset. I rather burn up a return pump then dump 55 gallon in the display tank.

So easier way I can explain is I want a low level float switch that will let the current flow when there is plenty of water but once the water lever gets too low it will trip a manual reset button that will cut all power to the top off pump/or relay. So then the top off will not be able to reset itself till I can find the problem and fix it.

Thanks I hope that makes some sense

 

[redfishbluefish]

If I understand the "problem", I think what I'd do is put a second float switch in the DT for when the water level got too high. But in actuality I wouldn't do that either. I've never seen a drain line get clogged....especially one that the water first goes through saw-teeth before going down the drain.

If you do wish to still do this, and it is an "AquaHub" type setup with a relay, you will have other connections on the relay for "normally open" and that's where you will want to connect this second float switch. Off the top of my head I want to say connectors 5 and 6, but I'll have to look that up to double check.

Hope I got the problem right.

 

[redfishbluefish]

I'm not sure I gave you the right info on the relay....that's a double pole, double throw (DPDT).....I'll need to double check the actual wiring, but I'm close.

 

[Mat1018]

So I was looking around more. I found on aqua hub that they sell a pump stopper that does what I want it to do pretty much. It has the manual reset button and all. I'm trying to pull up the site and instructions to see if it explains how it's wired. I'll try to drop the link here and maybe someone can break it down better. Also don't want to put anything in the display tank want to keep all in the sump. I know the likelihood of the over flows clogging is probably rare. But I want to have all the failsafes I can have better to be safe then sorry.

 

[Mat1018]

Here is the instructions from there sight. I don't understand how they wire the reset switch into the set up that actually pops to cut power.

http://www.aquahub.com/store/media/PumpStopperKitInstruxMar12.pdf

 

[sidneyreefer]

You want a normally closed float . Pass one side of your ato pump power through that float. If the float ever goes "open" one side of line to the pump will open as well.