Attaching shut off valve to RODI?

[Be102]

I purchased the marine depot economy 100 gpd RODI and just finally switched the filters and installed a triple tds meter along with a pressure gauge from BRS. I was curious about going about installing a RODI shut off kit and how to install my flush valve. The tds meters and what not were fairly simple, it’s just the auto off kits and whatnot seem a little confusing especially considering my lines are different colors from the brs RODI.

 

[DLHDesign]

You mean one of these kind of kits? If so, there are instructions here (linked from that page).

In general; the thing to understand is that the valve has two water lines running through it - one that operates as the "switch" and the other that is opened and closed. The "switch" line is one that will gain in pressure when something fills up - thus the requirement to have the float switch (or the like) as that will trigger the "switch" line to go up in pressure. The other line gets shut off when the "switch" pressure grows to a certain point. This is great for shutting off either your final waste or initial input line (generally the waste line). If you do that, then when your "good water" tank fills up (and activates the float switch), your entire system will shut off - all without electricity or any manual input.