I currently have a AquaFx ro/di that I use to make water for my biocube. It works just fine running at 20 psi as I normally only make 5 gallons of water at a time and about 10 gallons when you combine my weekly water change and top off. My filters last a long time and I do monitor my tds meter and change my ro and di cartridges when my numbers begin to climb. I also change my prefilter and carbon once the pre shows discoloration. My question is I know I should have 60 to 80 psi for best efficiency; but is it worth spending the money to add the booster pump when my usage is so low? I want to upgrade to an IM 40 (the biggest I want to go while still living in an apartment.) I think I should put the money into a new tank.
What should I prioritize right now?
What should I prioritize right now?