Generally you want the di to come after the ro membrane otherwise if its before, the unfiltered water will go through di resin and deplete it very quickly. If you're canisters are hooked together via hoses, you could run a line from your ro membrane to that last canister and then to your second di canister and have the line from the carbon filter go to your ro membrane, alot of rewiring but its doableive been reading and searching and now I’m gonna ask. Instead of running 2 carbon filters can or should I switch out the second with a DI and run 2 DI canisters. And does it work running one before the membrane like the diagram here?
Yes :)so Long story short I should just keep as is and add another canister (pictured) after my DI now if I want to run 2 DI canisters?
