Ato

[marlincoral]

i got mine off ebay for half the price anywhere just keep watching and you can get one cheap

[bassman]

I use furnace humidifier floats. They are easy to work with, cheap and use no power. You can buy them at Home Depot for about $15.00

[mseepman]

I grabbed the JBJ off e-bay for cheap. It works really well and comes with 2 float switches so that you can monitor both your Sump and your reservoir. It checks both before turning the pump on.

J&L carry them too.

[mr_alberta]

If you don't mind electrical wiring you can easily make one running off of 9, 12, 24VDC. I can help you with that if you'd like.

[Reef_Craze]

why autotopoff.com

[mark]

I'm also using a humidifier float valve (hooked directly to my ro/di unit) but you could try of of these DIY with a salt-bucket of other sealable container. I never did one but principle seems solid.

[midgetwaiter]

I had one I built to run off 12 vdc with 2 floats, hated it. It was probably the switches I used but looking at the sump from across the room seemed to be enough disturbance to get it switching on and off like mad. Nothing I tried as a snail / splash guard made a bit of difference. I got the switches locally but they seemed identical to the ones you see with the cheap kits.

I've got 2 Blueline tsunamis that I like much better.

[Brent F]

I use a JBJ ATO as well and am very happy with it. I have an open tank with metal halide so have a lot of evaporation. I have had my fresh water reservour run out a couple times so the second float switch to shutoff the pump if the supply tank is low is a great feature for me.

[Boomboy]

all of you are saying what you have but not where to get them, someone said they got theirs from j&l but i cant find it, if people could tell where they got there jbj that would be awesome thanks

[dsaundry]

Ebay...