Best auto top off for dosing lime water?

[kv69]

Wondering if you guys have recommendations...:squigglemouth:

My current ATO. Its has begun to let the water drop about a 1.5 inches in the sump, and well, that's just too much IMO.

 

[AZDesertRat]

I have been using the Spectrapure UPLC-II for almost 6 years now with no complaints. It is user adjustable from 1/10" to 4" range at the touch of a button plus has multiple safeties built in. It uses the same bulletproof peristaltic pump as their LiterMeter which has been around for decades.

 

[JMSKI333]

I use a BRS 50ml/hr dosing pump on a timer. It will never fail.

 

[Chameleon]

my double float switch from autotopoff.com is great! only time I ever had an issue was when I had the top off line positioned over the float switch and over time the kalkwasser precipitate froze the float switch in the down position.

 

[mfinn]

I use a JBJ ATO on my 240. I did have to replace the sensor floats after 6 years.
I am trying a Tsunami AT-1 on my 50. Seems pretty steady, but I've only had it for 7-8 months.