Auto top off

[Devilutionz]

Ok gangs
I've read threads about the importance of an ATO unit.
If I was to buy an auto top off unit, where does it get the water from? I meant do I have to water reserved tank connect to it so it'll pump water from there or something?
Thanks

 

[redseven]

hi, there is a more economical way to have a top off unit with a little work, you can see them here http://www.melevsreef.com/plumbing/auto_topoff.html and to answer your question, the top off switch is connected to the pump inside your water reserved tank.

 

[shapermike]

I just bough this one
http://www.bulkreefsupply.com/Auto-Top-Off-Systems/c72/p360/Top-it-Off-Kit-Premium/product_info.html

you will need two float switches to have redundancy. I like this one and I have it set up in my frag bin. it works good and you get all you need excipt a pump and exciton cord