JbJ ATO...
- Thread starter Mussin
- Start date
I have used one for the past 5 years. I have one float switch in the return section where I want the water level and the other in the top off reservoir just above the pump to shut it off if the reservoir were to run dry. I use a small MaxiJet 400 as a pump and 1/4" tube for the plumbing.
Bpb
New member
Be happy to. I'll try to post pics tomorrow.
firebirdude
User and Abuser
It's essentially the same mode as having the float switch in the ATO reservoir. You unscrew the plastic nut on your float switch, flip it upside down, screw the nut back on and mount it above the first switch in the sump. The JBJ has no clue where it is. It just knows that when that second float switch gets tripped, stop running the ATO.
The float switch has to be flipped because it's doing the opposite job, so to speak. In the ATO reservoir, it would trip if the water level gets too low. Now that it's in the sump, it needs to trip if water levels get too high.
firebirdude
User and Abuser
And the JBJ is really no different than the Aquahub DIY kit, for example. Only difference being the built-in emergency off timer, which is nice. Little cleaner too a suppose. But more money of course. Same float switches. Same relay network.
Quick note, that built in timer actually ruins the JBJ option for those looking to top off large amounts of water. Plenty of people complain about that. Think it runs for.... 3 mins max?
Quick note, that built in timer actually ruins the JBJ option for those looking to top off large amounts of water. Plenty of people complain about that. Think it runs for.... 3 mins max?
Mussin
New member
If you take it apart you can adjust the trimmer for up to 7 minutes of running time.
Bpb
New member
A previous poster explained it perfectly. So in mode A: the water level sensor in the sump will detect low level and activate the pump to fill. Once it reaches it's float position the circuit is broken and the pump is off.
The second switch is set to always be floated and sitting in your topoff reservoir just above the pump...so if it FALLS the pump is cut off to avoid burning the pump.
To me, water damage an dead livestock cost more than a stupid pump, so as you see pictured I run them both in the sump to prevent over filling.
You can see they're RIGHT next to each other. But the second switch housing is just mounted on the bracket upside down you can see the white float on that if you look closely.
So in summary. Mode A: switch one drops, activates pump, raises with water being added and cuts off pump. If for some reason there is a fault, or pump malfunction or whatever, and the water continues to rise, the backup switch will float to the top of its braket (or as it "thinks" the "bottom"), and cuts the pump in the event of a switch 1 failure. It thinks it has sunk to the "low reservoir level" since it's upside down and acts as a fail safe. Make sense?
The second switch is set to always be floated and sitting in your topoff reservoir just above the pump...so if it FALLS the pump is cut off to avoid burning the pump.
To me, water damage an dead livestock cost more than a stupid pump, so as you see pictured I run them both in the sump to prevent over filling.
You can see they're RIGHT next to each other. But the second switch housing is just mounted on the bracket upside down you can see the white float on that if you look closely.
So in summary. Mode A: switch one drops, activates pump, raises with water being added and cuts off pump. If for some reason there is a fault, or pump malfunction or whatever, and the water continues to rise, the backup switch will float to the top of its braket (or as it "thinks" the "bottom"), and cuts the pump in the event of a switch 1 failure. It thinks it has sunk to the "low reservoir level" since it's upside down and acts as a fail safe. Make sense?
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Indymann99
New member
I had a JBJ and it ran fine for 3+ yrs then failed and had to be restarted (pwr off/on) every couple of days... I upgraded to APEX controller.
Picts of floats when I had the JBJ - I ran 1x float in Return section and 1x in the ATO res. worked great for years.... the JBJ has a pump run timer so you really dont need 2x floats in the return section.
Picts of floats when I had the JBJ - I ran 1x float in Return section and 1x in the ATO res. worked great for years.... the JBJ has a pump run timer so you really dont need 2x floats in the return section.
Mussin
New member
How's that working for you? This is what I planned on doing because my ATO bucket is in the Room behind the tank and I am going to run the water line through the wall and just really wanted the one switch in the sump. Mode a or b?
