Water Timers?

[abcha0s]

Originally Posted by Aquattro

I looked at your build thread, the ATO diagram by itself was overwhelming!! My head hurts trying to figure it out

I think that's a compliment?! - Thanks.

Anyway, it's really only complicated because I have two of everything and a bunch of float sensors as last resort fail safes. If you look at one piece by itself, it's the same as everyone else is doing.

I bought my solenoid from BWI. The nice thing about it is that it uses AC power, so there's no need to make any modifications.

http://www.bwiplumbing.com/products/...ohn-Guest.html

I''m pretty sure that this is a special order part as I had to wait several weeks for delivery.

If I were a betting man, I would speculate that this is the source.

http://www.autotopoff.com/solenoid/

I like the sprinkler valve idea, but I could never find a suitable 24V power source. Maybe I just didn't know where to look.

There's also the question of whether to put the valve before or after the ro/di unit. If you have a single input and a single output, then putting it between the source and the ro/di is probably the best thing to do. In my case, the output is tee'd and I wanted independent control of each line, so I installed it between the ro/di and the reservoir. I may revisit this in the future.

For what it's worth, I've had my crazy ATO fully operational on my 90G tank for some time now and it's so completely reliable that I have to consciously make an effort to check it's operation every so often. I generally never even think of this aspect of my system.

[Aquattro]

Originally Posted by abcha0s

I think that's a compliment?! - Thanks.

Ya, it was

[mike31154]

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....