Auto top-off systems

[esmithiii]

Can anyone post pics/schematic of their DIY auto-top-off system? I bought a float switch, and plan on using it to start a powerhead to pump RO/DI water to the sump. I have yet to work it out how to avoid a siphon being created, and how to store the RO water effectively.

Thanks in advance. Oh, BTW- this is for my 180 RR.

Ernie

 

[SPC]

E, this is what I have for my 180. 40 gallon trash can style container that is filled via my RO/DI unit. This container has a float valve (like a commode) that shuts the input of water off when it has reached its desired level, it does not shut the RO/DI off, only the water entering the container. An Ultra Life float switch is positioned in the sump and is hooked up to a Hagen 802 powerhead that is in the top off container. A pc of vinyl tube runs from the power head to the sump. I drilled about a 3/16" hole in the tube located in the top off container, which stops the syphon.
Steve