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JBJ ATO Question

redfishbluefish

redfishbluefish

Officer Emeritus
Officer Emeritus
I picked up a used JBJ ATO to use on a JBJ 28 tank. My interests were to set it up using both floats to turn the pump off when they “floated”. I basically want a two float system to assure when one switch went bad, the other would still turn off the pump to the water reservoir.


So I’m looking at the instructions and I don’t see were that is an option with the JBJ.



Am I missing something? I really want a backup float valve since there is no extra volume in an All-In-One tank to fit all that extra reservoir water when the switch goes bad.
 
Fish Brain

Fish Brain

Officer Emeritus
Officer Emeritus
No, you are not missing anything, it's only an A or B option for the switches. However, feel better in knowing that it does have a built in timer that, if a sensor fails or a snail triggers the pump, it will time out and stop.

I do believe the timer is adjustable via an internal pot.
 
redfishbluefish

redfishbluefish

Officer Emeritus
Officer Emeritus
Thanks Brian. I’m not familiar with this ATO, so I set it up with a light plugged into the controllable outlet to check its functions. The first thing noted was that one of the float switches was DOA. So I now only have one anyway. But verifying what Brian said, after a couple minutes of being on, the feed pump automatically shuts off. I timed this and it varied between two minutes and four minutes. Bottom line is that now I feel more comfortable setting this up with one float switch.
 
ahvrivera

ahvrivera

See....... i t told you you would figure it out McGuyver :p. If you need another float let me know know i have some extras
 
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