Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 7 of 7

Thread: Liquid solor covers= CETYL ALCOHOL ?

  1. Back To Top    #1

    Liquid solor covers= CETYL ALCOHOL ?

    There is some guy on Ebay selling instructions on on how to make the liquid solar covers. After doing some research, I figured it a fatty Alcohol dissolved in rubbing alcohol.

    Has anyone else tried to make their own liquid solar covers/ blankets?
    28000 gallon painted plaster
    In pecan grove in mid GA
    Intellichlor SWG
    i try to keep-
    80 PPM CYA
    50PPM borates
    3200-3800 salt
    usually no problems.

    Lots of kids, dogs , wild life in pool...everyone but me.

  2. Back To Top    #2
    Guest

    Re: Liquid solor covers= CETYL ALCOHOL ?

    No, because they don't work very well. The general consensus is that they are not worth the time, effort, or money (and this is based on a few years experience on this and other forums notably Poolforum) by several users).

    I read one analysis of the commercial stuff that said it was paraffin dissolved in isopropy (isopropyl alcohol is the only hazardous ingredient on the MSDS). In any case it is some type of wax dissolved in an alcohol.

  3. Back To Top    #3

    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
    Posts
    12,085

    Re: Liquid solor covers= CETYL ALCOHOL ?

    One such solar blanket, HeatSavr, apparently has a patent here indicating that the product is just a combination of "an aliphatic alcohol component having from 12 to 24 carbon atoms per molecule" combined with calcium hydroxide. The calcium hydroxide is just a carrier and dispersing agent.

    The preferred embodiment uses cetyl alcohol (1-hexadeconal) and it only takes a small amount as the layer is only one molecule thick.

    Such products only work moderately well if there is no wind. Possibly better than nothing in some cases, but no where nearly as effective as a regular solar cover.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

  4. Back To Top    #4
    amjohn's Avatar
    Join Date
    Jul 2008
    Location
    Rural NE Texas
    Posts
    389

    Re: Liquid solor covers= CETYL ALCOHOL ?

    Our pool installer tried using one of the liquid solar covers. He said every time they got out of the pool they felt like they had been bathing in Crisco. Yuck! Took them forever to get the stuff out of the pool also.
    28 ft round Doughboy Sand Dollar II AGP, Aug 2008: 4 ft shallow, 6ft deep end: 24K gal approx Hayward Power-Flo Matrix
    1&1/2-HP 2-SPD Pump, Hayward 27-Inch Sand Filter with a little DE -(2) 4ftx20ft Solar Bear AGP Panels w/ Goldline auto-controller, 50ppm Borates And some day, maybe this year, a DECK!!!

  5. Back To Top    #5

    Re: Liquid solor covers= CETYL ALCOHOL ?

    My solar cover broke down and I am waiting for a new one. the local Home depot had the liquid blanket on clearance, $2 each so I bought one to see if it offered any help. From I read elsewhere it doesnt really heat the pool but will help reduce evaporation/water loss at night when the pump is off and it can build up a slight film across the top.

    When I poked the holes in the ball, some spilled on my fingers and it looked and smelled like fabric softener. Could it just be some downey in ball? We are already using all laundry materials to maintain the pool, Could fabric softener be the next blow in the pool industries monstrous markups and profits?
    12,500 Gallon Fiberglas spool
    Hayward S210 Sand filter
    Hayward Superpump

    Tulsa OK
    been using BBB since April 2008

    Guess What?????
    BEEN ALGAE FREE SINCE APRIL 2008

  6. Back To Top    #6

    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
    Posts
    12,085

    Re: Liquid solor covers= CETYL ALCOHOL ?

    Ultra Downy has an MSDS that does not disclose the ingredients, though does indicate that it is acidic. I doubt very much that the fabric softener would work as a heat shield. As I noted in this post earlier in this thread, the solar blankets work by having a thin one molecule thick chemical layer (film) on the water so that means any chemical that has a hydrophilic (water-loving) end and a long-chain hydrobphobic (water-hating) end. Cetyl alcohol would work, but the trick is in how to get it to disperse evenly and quickly and that is part of what HeatSavr does using calcium hydroxide.

    Fabric softeners do have long-chain hydrocarbons, but their ends are typically cationic (positively charged) so would tend to repel if on the surface of the water (i.e. they would not form a continuous film). This is why an alcohol is used instead in the HeatSavr since it is polar so that end can stick in the water, but it's not charged overall so is not strongly repelling next to adjacent molecules.

    Richard
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

  7. Back To Top    #7

    Re: Liquid solor covers= CETYL ALCOHOL ?

    And I guess thats why you are called CHEMGEEK?
    12,500 Gallon Fiberglas spool
    Hayward S210 Sand filter
    Hayward Superpump

    Tulsa OK
    been using BBB since April 2008

    Guess What?????
    BEEN ALGAE FREE SINCE APRIL 2008

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •