If you're still shopping for a RO
unit - go to Ebay and check out the range of products out there. I bought a 110 gal
/day 6-stage RO
for about $120.00 (shipped) and it came w/everything for an under-the-sink installation. I had no need for the pressure tank so I saved there. I have not tested my purified water with a TDS
meter yet, but tests are revealing that it is not totally removing the PO4
. I have friends who have same unit and they say that it needs to be broken in with about 100 gallons before performing optimally. Not sure what the logic is there...
Otherwise, the water it produces seems to be very good.