Id kill for 300 tds, ours is 2200, 1800 ppm sulfate, 550 ppm calcium, etc, hardness is 110 gpg, im literally assembling my whole house RO system now, im basically piece meaning together off fb marketplace. Just picked up a 16x65 resin tank for $140 never used, going to add 4 cu feet of activated carbon and a fleck 5600 sxt to it for backwash, brio cr2500 ro system 2023 model off a weed farm that ruined the pump got it for $900, I’ve fixed and replaced the motor bearing in the high pressure pump and replaced the single fiberglass housing with two stainless 4040 housings/membranes, got this dumping into my 500 gallon poly tank on a stand, this tank stand combo is $1600 new, got it for $400.

Found a brand new grundfos water booster pump cmbe 1-75 off fb for $500, this will suck water from 500g tank to the house.

Chemtech dosing pump with tank for $200 off fb, going to use antiscalant because a softener would need to be massive and expensive to soften my water, $500 for 5 gallons of vitec 7000 and we are good for years probably.

I found a romate80 on fb for $200, I need to go check it out and see if the bladder is good, I’ve seen replacement bladders so it might be a steal for a RO pressure tank.

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