I finally finished my RODI setup. With my daughters school starting and deciding to spend some time on my fresh water tank to save the plants, it took longer than expected.
Thanks to tips from
@W1ngz I now have a nice setup. I got an DM-2 dual tds meter. It is an upgrade to the DM-1. It includes thicker wiring, better mount, a larger backlit lcd and more durable switches for moving between in and out probes. I found it for $7 more than the DM-1 on
Amazon and went for it. I am glad I did. I put the probes at the output of the membrane and the resin. I also added an auto shutoff valve. I finally moved the pressure gauge to the input of the membrane. The only downside of the setup is that it looks like a plate of spaghetti. If you have any tips on pipe management I’d welcome it.
I screwed everything on a wood board an hung that on the wall using picture frame hooks.
I also bought a 20g Brut can and added a float valve.
Tested everything and it works beautifully. Interestingly, my tds out of the membrane starts high (50) but within a minute it is down to 0 or 1. My output tds from the resin is always 0.
It is such a nice setup that I used it for my shrimp tank. I may now get some crystal shrimp since I can maintain proper water parameters for them.
Now that the RODI is complete, I think I’ll start working on the plumbing. I am really excited. Thanks for following along.