I still use my 7 year old JBJ auto-top off in conjunction with my Apex Neptune. I use the Apex to turn off the ATO during feeding periods. I like the built in timer in the JBJ that only allows a limited top off pump run duration (although you could program in the time duration with the Apex). I suppose it is redundant now that I think about it, but the JBJ has been very reliable.
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