Ya, it was :)

If you're using a 24 volt DC sprinkler valve, why not use the sprinkler timer as well? It should come with the 24 VDC power adapter. Given the choice, I'd rather work with 24 VDC around water than 115 VAC. I have an underground sprinkler system for irrigation and it has a 12 zone timer to run it. Pretty sure there are some smaller timers with fewer zones available that would be cheaper. Actually gives me an idea, since the timer for my irrigation system has three independent programs - A, B, C, I could possibly use one of those for a similar fail safe on my RODI....

What about a mechanical timer from Lee Valley?

http://www.leevalley.com/en/garden/p...280,33160&ap=1

Plumb in a hose bib and use that.

They have battery operated electronic ones as well.

http://www.leevalley.com/en/garden/p...280,33160&ap=2

Mitch

I was able to find a solenoid at Progressive today, so that, hooked to a timer to open it for an hour each day should do the trick. Once I figure out how to wire it under the sink :)

thats what I was going to sugest, abcha0s design was pretty and realy strait forward, but also uses a tank controler and a bunch of other things you don't so his set up won't work for you.

Do you have your RO filling a bucket somewhere or are you just feeding to the float valve on the sump?

Steve

Ya, direct feed to the flaot valve, controlled by a pressure switch. The timer is backup safety, if I only run it for an hour, no chance of filling my livingroom :)