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Thread: Emulsified Water-No Spot Car Wash

  1. #1
    DIY Senior Member Mike50's Avatar
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    Lightbulb Emulsified Water-No Spot Car Wash

    I just bought a new Jeep Liberty. Whenever I'm at the Chrysler dealer they will run my car thru their mini car wash before leaving. And it's simply amazing. It takes about a minute and you're good to go. No air dry-No hand dry. The water evaporates leaving no water spotting at all.

    They told me it's because they use "Emulsified Water" with no further explanation. Is the water just softened or what..? No car washes exist that use this specialty water product.

    So here's my idea: Mix up my own emulsified water and load into a pressure power wash/cleaner.

    I've had black cars before and know how quickly swirls happen especially at car washes that use brushes.

    What is in this water..how is it filtered....and can I duplicate it?

    Mike50

  2. #2
    DIY Senior Member SteveW's Avatar
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    Haven't heard of "emulsified water" before -

    but wonder if they are using a soap/detergent kind of similar to the Mr. Clean stuff you can buy at the auto parts store, which is supposed to cause water to sheet off your car without towel drying, and without leaving spots?

  3. #3
    DIY Senior Member Mike50's Avatar
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    Quote Originally Posted by SteveW View Post
    Haven't heard of "emulsified water" before -

    but wonder if they are using a soap/detergent kind of similar to the Mr. Clean stuff you can buy at the auto parts store, which is supposed to cause water to sheet off your car without towel drying, and without leaving spots?
    Good catch Steve. The Mr. Clean requires soap and the reviews on that product are mixed. The emulsified wash is soapless.

    Mike50

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    In the Trades Gary Swart's Avatar
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    The car wash I frequent has what they call a "spot-free rinse". They still blow dry the car, but it seems to work as there are no spots. I have no idea what makes this rinse spot free, but I'll inquire and report back if I can find out.

  5. #5

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    I'm not sure how the process works, but the guy who owns the car wash I go to said it takes two gallons of water input for each gallon that's output to the spot-free rinse.

  6. #6
    Retired Defense Industry Engineer jadnashua's Avatar
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    Maybe they're running it through a reverse-osmosis membrane...no minerals or other contaminents in the water, nothing left in it to spot. Those filters don't have the greatest efficiency (in wasted water) - you end up thowing away a fair amount.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

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    DIY Senior Member Mike50's Avatar
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    Quote Originally Posted by Gary Swart View Post
    The car wash I frequent has what they call a "spot-free rinse". They still blow dry the car, but it seems to work as there are no spots. I have no idea what makes this rinse spot free, but I'll inquire and report back if I can find out.
    I think I hit paydirt. It's a "New Wave" product called "Purclean": (can't post link-sorry)
    Looks partially proprietary. Too bad because it also looks like it's for commercial applications exclusively.

    "PurClean is the professional's choice for delivering a spot-free car wash, every time. The PurClean system utilizes the process of reverse osmosis to eliminate the mineral content in the water. Manufactured with only the finest quality components and our unique Patent Pending (Water Stabilizer™) pre-treatment system, the PurClean Spot-Free Rinse system addresses water hardness, operates efficiently and cost effectively while eliminating the need and upfront cost of a water softener as well as the ongoing expense of softener salt. The PurClean systems effective use of pure mineral-free water delivered to the vehicle as a final rinse allows the entire vehicle to dry perfectly spot-free eliminating the need to costly and time-consuming hand drying.

    With a variety of models to choose from, New Wave Industries has the right PurClean model to fit your vehicle washing needs. Our knowledgeable and friendly staff of engineers, project managers and technical assistants are available to assist you in selecting and sizing the perfect PurClean system for your specific vehicle washing application.

    PurClean is represented by a nation-wide network of factory trained / authorized distributors and service providers - Contact PurClean today for the authorized PurClean representative nearest to you."
    Last edited by Mike50; 02-22-2008 at 11:26 AM.

  8. #8
    DIY Senior Member mikept's Avatar
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    reverse osmosis purified water with a cleaner that evaporates added?

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    I&C Engineer (mostly WWTP) Lakee911's Avatar
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    RO water is not proprietary, but perhaps what they add to it is. It seems to make sense. Generally the spot free rinse is just a fine mist of water that just adds enough water to the droplets to make them roll off.

    This chemical must interfere with the surface tension of the water so it doesn't bead up at all and what does evaporates cleanly.

  10. #10
    Retired Defense Industry Engineer jadnashua's Avatar
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    I think the point is that (assuming it is working properly), reverse osmosis removes all impurities from the water; even without a wetting agent (which could add something that might create spotting in itself), once it evaporates, there would be no residue. A wetting agent that also left no residue would remove the water quicker, but have no effect on spotting unless it picked up a bunch of dust prior to evaporating and holding it to leave in place.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

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    Master Plumber Redwood's Avatar
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    I believe it would be a product similar to Jet-Dry used in dishwashers.

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    DIY Junior Member Buckeyetech's Avatar
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    A good friend of mine owns a car wash. His has a reverse osmosis system for the "spot free rinse"

    Go Bucks

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    DIY Senior Member Nate R's Avatar
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    Surfactants

  14. #14
    Master Plumber Redwood's Avatar
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    Quote Originally Posted by Buckeyetech View Post
    A good friend of mine owns a car wash. His has a reverse osmosis system for the "spot free rinse"
    Then he recycles the water... LOL

    Yes, Nate that is the answer.

  15. #15
    That's all folks! Gary Slusser's Avatar
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    Th PurClean may use a nanofiltration membrane ahead of their RO so they don't need a water softener.
    Gary Slusser Retired (= out of business)
    Click Here to learn how to correctly size or program a water softener.
    CAUTION, as of Nov 12 2013 all YouTube videos showing how to rebuild a Clack valve have an error in them that can cause damage.

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