The previous owners of my house installed a RO2127 Reverse Osmosis system under the kitchen sink, which is very handy. This system has a ROM-16C membrane, P5 pre-filter cartridge and D20 post-polishing cartridge: a very basic setup from what I understand. The system also includes a pressurized storage tank, and supplies 15 gallons per day.
Right now I am looking at replacing all the cartridges, as I expect they are way past their prime. But I'm wondering if I should instead replace the whole system?
TDS from the city supply is around 400ppm (gasp!). What's coming out of the RO2127 currently is 300ppm.
Comments/advice most welcome!
Right now I am looking at replacing all the cartridges, as I expect they are way past their prime. But I'm wondering if I should instead replace the whole system?
TDS from the city supply is around 400ppm (gasp!). What's coming out of the RO2127 currently is 300ppm.
Comments/advice most welcome!

