portable ro system

Briefly...

RO (Reverse Osmosis) is a physical filtering system that uses pressure to push water through a semi-permeable membrane. It's rejection rate is around 90-99%, depending on what's is the water. 95% is the average.

DI (deionization) is a chemical filtering system that puts water through a cartridge with ion-exchange resins (hydrogen and hydroxide). When water passes through, dissolved minerals like sodium, calcium, etc. are turned into water molecules. The water purity will be 100%. Literally, zero parts per million.

However, DI resins get "spent" rather quickly and lose the ability to completely purify the water. RO filters don't remove 100%, but they can go and go and go. So RO filters are used in front of the DI filter in order to prolong the resin's ability to deionize. This setup is called RODI.

To preserve the RO filters and DI resins, a sediment filter is often used first, with a carbon filter being used second in order to remove the chlorine.

I don't know what you would need in order to purify at a rate of 5-6 GPM. More likely would need to purify overnight or during the weekend and store the water.
 
Actually it is very dependent on your TDS. Or total dissolved solids. Around here are tds runs around 50-60 ppm. I am able to get 5gpm out of 2, 40x4'' membranes and a chlorine prefilter. My rejection rate is around 50 percent. This brings the water to a tds of 1-2 ppm. If I went with a rejection rate closer to 90 percent The tds drops to 0-1. Anything under 10ppm will be spot free. If your using well water or city water with a high tds your output is going to drop accordingly.
 
Is there any new input on this subject? I have been out of the pressure washing business for a little bit but looking to come back to...my roots I guess you could say.
 
Sorry to hear that you left the business, I don't remember any posts with you mentioning it.

Glad to hear that you are back, Welcome Back.

Do you still have that cool truck that is in your signature?
 
Chris I no longer have the truck :(. But I am working on putting together a even better one. :) Well equipment wise that is. That was a great truck.
 
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