Reverse Osmosis for spot free wash

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kajunman

New member
<span style="font-family:'times new roman', serif;"><span style="font-size:12pt;">Do any of you guys use reverse osmosis to treat your water? Some commercial car washes use it for spot free washes. This company, Modular Hydro http://www.modularhydro.com/ <span style="font-family:'times new roman', serif;"><span style="font-size:12pt;">, makes some home based systems that are probably a lot cheaper to operate than CR type resin based systems. They have a single cartridge unit http://shop.modularhydro.com/EcoFlo-RO-2-Stage-Reverse-Osmosis-Water-Filter-System-50-100-GP-EcoFloRO2Stage.htm<span style="font-family:'times new roman', serif;"><span style="font-size:12pt;">  for $86 and a dual cartridge system  http://shop.modularhydro.com/EcoFlo-3-Stage-Reverse-Osmosis-Water-Filter-System-50-100-GPD-EcoFloRO3Stage.htm for $119  <span style="font-family:'times new roman', serif;"><span style="font-size:12pt;">. Both units are available in 50 Gallons per day or 100 gallons per day for $8 to$10 extra. They both come with garden hose connections, a 6 foot inlet hose and a 6 foot drain hose. I am thinking about getting the single system because I would just use it to treat water I am using to make my ONRWW wash. I would probably just hose the car off with untreated water before doing an ONRWW.


<span style="font-family:'times new roman', serif;"><span style="font-size:12pt;">kajunman 
 
Huh, that kind of high-volume output RO *is* intriguing! I'd go with the 100 gallon one myself, and I'd sure verify that it really would produce that much water (I bet it takes a full 24 hours to do it).

Note that you'd need a *BIG* holding tank since such sytems work so slowly; I'm quite sure that you'll need the full 50/100 gallons sitting there ready to use.

Wonder how much waste water they go through (my two "regular" ROs both waste a *lot* of water).

And I notice it's cold water only...
 
Accumulator said:
... verify that it really would produce that much water (I bet it takes a full 24 hours to do it).


Note that you'd need a *BIG* holding tank since such sytems work so slowly; I'm quite sure that you'll need the full 50/100 gallons sitting there ready to use....
Click to expand...


 


Yeah, 100 GPD is less than a tenth of a gallon per min.


 


Even a high flow system like a GE Merlin only gets a half GPM, still not eneough for a rinse down with a pressure washer.


 


But for <span style="font-family:'times new roman', serif;"><span style="font-size:12pt;">kajunman's ONRWW wash he'd only need a couple gallons. He could be ready to wash in an hour or so from scratch. And he could keep a bucket or jerry can of water at the ready much easier than a 50 gallon drum.


 


It's tempting. But I really want to be able to do a spray rinse. I just need to figure out where to store a 50 gallon drum.


 


Hmmmmm, if I relplace my water heater with an on-demand unit I'll have a space for a 40 gallon tank immediately, and it'll have full water hook-ups right there. Hmmmm.....
 
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