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  • Results 1 to 14 of 14

    Thread: Muriatic Acid...

    1. #1
      Gordon Parr's Avatar
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      Muriatic Acid...

      It has been awhile since I cleaned my Profi Drum filter screen. Can someone here remind me how use MA to clean correctly?
      Murphy's New Law -
      "If it doesn't fit, force it.
      If it breaks, it was meant to!"





    2. #2
      tf104 is offline Senior Member
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      This is how I do it, First I loosen the set screw that locks the drum to the shaft. This allows for easy rotation of the drum. next I spray 100% MA on the area just above the waste tray then I brush with a soft bristle paint brush then I spray some more and brush again then I rinse. then I rotate the drum to get the next section above the waste tray then repeat previous steps until I have rotated and cleaned the drum 360 Make sure that the drum has not moved side to side and tighten set screw.

    3. #3
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      I have cleaning instructions for Profi products that I can email to you.
      Mike




      Weekends are for Enjoying your pond..... not working on them.

    4. #4
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      If your buying from a place like Home Depot the acid is around 15% concentration.
      The real Batman wears polyester! Don't be fooled by the plastic imposter.

    5. #5
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      I've never cleaned mine in the 5 years or so I've had it... so I wondered how do you know it needs to be cleaned?
      --Steve


      In the beginning of a change the patriot is a scarce man, and brave,
      and hated and scorned. When his cause succeeds, the timid join him,
      for then it costs nothing to be a patriot.

      ---Mark Twain

    6. #6
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      Quote Originally Posted by icu2 View Post
      I've never cleaned mine in the 5 years or so I've had it... so I wondered how do you know it needs to be cleaned?
      The cleaning cycle increases as the screen gets clogged.
      people like to vehemently defend their purchases and find it incredulous that anything could be better

    7. #7
      Gordon Parr's Avatar
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      What Russell said!

      My screen now has what appears to be a brownish bio film on it...that and a quicker cleaning cycle tells the tale.
      Murphy's New Law -
      "If it doesn't fit, force it.
      If it breaks, it was meant to!"





    8. #8
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      Muriatic aka hydrochloric acid etches stainless steel. I wonder if this method of cleaning results in future more frequent cleanings.
      The real Batman wears polyester! Don't be fooled by the plastic imposter.

    9. #9
      icu2's Avatar
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      Quote Originally Posted by Gordon Parr View Post
      What Russell said!

      My screen now has what appears to be a brownish bio film on it...that and a quicker cleaning cycle tells the tale.
      Mine runs on a timer so I don't think I notice... but maybe if I cleaned it I could increase the time between cleaning
      cycles.
      --Steve


      In the beginning of a change the patriot is a scarce man, and brave,
      and hated and scorned. When his cause succeeds, the timid join him,
      for then it costs nothing to be a patriot.

      ---Mark Twain

    10. #10
      danbo is offline Senior Member
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      I clean the RDF screen maybe once a week with a strong jet water 'blaster' as my water wash pump maybe not powerful enough. Every couple of months or so, I use sulphuric acid (not sure of the concentration, but it's green and smells extremely strong). Dilute 50% with water. Rubber gloves on. Rotate the drum manually and sponge the acid onto the screen. You can see the bio layer disappear instantly. Make sure the pond water is sufficiently alkaline before messing with sulphuric acid, or add a dump of sodium bicarbonate after the acid wash. Can also use vinegar, but pretty sure sulphuric acid is much more efficient if a little more dangerous to handle.

      Dan

    11. #11
      Kathy is offline Member
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      Will 34% hydrogen peroxide work on cleaning rdf screens?

    12. #12
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      Muriatic acid related, when a waterproof sealant is applied to the surface area of a new concrete block walled pond do you need to acid etch it first no matter what sealant you choose? Thanks.

    13. #13
      icu2's Avatar
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      Quote Originally Posted by KoiFan84 View Post
      Muriatic acid related, when a waterproof sealant is applied to the surface area of a new concrete block walled pond do you need to acid etch it first no matter what sealant you choose? Thanks.
      No. I used Xypex to waterproof my pond and I never used muriatic acid to prep the the block surface before hand.
      --Steve


      In the beginning of a change the patriot is a scarce man, and brave,
      and hated and scorned. When his cause succeeds, the timid join him,
      for then it costs nothing to be a patriot.

      ---Mark Twain

    14. #14
      kimini is offline Senior Member
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      I've always wondered why strong (~30%) hydrogen peroxide wouldn't work.

      Regarding muriatic acid and using a brush to apply it, be very careful about personal protection. The brush bristles will throw tiny droplets everywhere, onto you clothes, hands, and eyes, and it will eat through your clothes.

      Fortunately, our water pressure from the street is high enough (~70psi) that I've never had to clean the screen; it always looks brand new.

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