Auto top off systems

[scuglass]

I think I will be setting it up so there is a resivoir (brute) fed by my ro/di unit with a float valve (humidifier type) in it. Then i will be getting an auto top off unit (not sure which one yet) for my sump which will draw from this brute. I will also be mixing salt in this container.

Currently my Ro unit just has the faucet attachment which I fill the buckets and my drinking water up with. I plan on adding a tee to the line which is currently going to the faucet and taking the extra end to this brute.

-Will I be contaminating my drinking water in anyway by doing this (anything gonna creep past the float valve? If so is there another way? Is there another way?

While typing this I realized setting it up this way my auto top off will draw from brute throughout the day lowering the water level small amounts at a time. This will basically cause the unit to run numerous times for short periods which is said to kill the membrane.... Hmmm I need to plan more lol.