Lugging jugs is an extreme nuisance. I am planning to stop by buckeye's this weekend for pricing an RODI unit. I have to disagree on 15 PPM "RO" from Polly's being cleaner if you just mean in terms of Nitrates. Tap nitrates run me about 5 PPM. Testing RODI from Texas Tropical, I get <5 PPM. Funy thing is theres a windmill in front of the Polly's and I haven't tried one yet.