emu1sive Posted September 20, 2015 Share Posted September 20, 2015 I finally got am rodi unit and am making my own saltwater! I would like to be able to bypass the DI stage for water changes on my freshwater discus tank. I am not well versed in anything to do with plumbing and Internet searching is not helping me today >.< my computer is in the process of being reimaged and I'll admit to failing at using any mobile device for anything but angry birds and texting. I have the brs 75 gpd running. My understanding is I need some sort of ball valve? A) what ball valve, can I get it off amazon or at Home Depot B) where oh where would this go between all these hoses?!? I am about to get a sharpie and start labeling lines and what they do/go to Link to comment Share on other sites More sharing options...
Juiceman Posted September 21, 2015 Share Posted September 21, 2015 It needs to go in between your RO stage and DI stage. I added a T fitting which leads to a ball valve for RO water. (NO DI) Link to comment Share on other sites More sharing options...
Juiceman Posted September 21, 2015 Share Posted September 21, 2015 You can see it sticking out on the right of the RO membranes.. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
FarmerTy Posted September 21, 2015 Share Posted September 21, 2015 I would think this would take care of you and just plug it like Juiceman has, after the RO membrane and before the DI resin. http://www.bulkreefsupply.com/3-way-ball-valve-with-john-guest-1-4-push-connect.html Link to comment Share on other sites More sharing options...
emu1sive Posted September 22, 2015 Author Share Posted September 22, 2015 Y'all the best Link to comment Share on other sites More sharing options...
jestep Posted September 22, 2015 Share Posted September 22, 2015 Just 2 quick comments in case you haven't done this before. First, treat the makeup water with prime or safe to remove remaining chloramines / ammonia. Unless you have a chloramine specific one with a huge carbon block, you'll still get chloramine carry over or actual ammonia due to the chloramine bond being broken in your RO output. Second, make sure to use equilibrium or do 50/50 with tap water for your changes. Even straight RO is too clean to use by itself. Has basically zero buffering capacity which makes for some really unstable Ph. If you are running CO2 on straight RO, you can easily crash a tank. Link to comment Share on other sites More sharing options...
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