Recent content by aehaas

  1. aehaas

    What Happens to Cl Levels When Algaecide is Added to Your Pool Water?

    So it seems that algaecide should only be used for closing a pool. Polyquat 60 will be degraded by chlorine, and by this experiment chlorine will be degraded by Polyquat 60. After reading Algaecide - Further Reading it is clear why Polyquat 60 is useful for closing the pool. So the next...
  2. aehaas

    What Happens to Cl Levels When Algaecide is Added to Your Pool Water?

    I figured that adding a maintenance dose of algaecide every week would allow me to reduce my SWG output of chlorine making it (the generator cell) last longer. I normally run a steady free Cl level of 4 to 6. I added some algaecide. Days later some visible algae started in places. I noticed that...
  3. aehaas

    algae that doesn't go away no matter how high the chlorine

    My photometer as listed above is accurate at the L1 level, for example, as documented below, for chlorine levels as shown. The meter comes with a standard that can be used to calibrate at any time. I tested the calibration months ago when I purchased the meter and again, after hundreds of tests...
  4. aehaas

    algae that doesn't go away no matter how high the chlorine

    More people here should invest in a photometer for accurate readings. If you are at this web site then you are clearly more interested in doing it right. As a biochemist I prefer as accurate a reading as possible. I use : Pool eXact® EZ Photometer It is available as a kit with all the reagent...
  5. aehaas

    ? Benefit of Borate Level of 15-20? in SWG Pool?

    Let me thank you all for your help! ali
  6. aehaas

    ? Benefit of Borate Level of 15-20? in SWG Pool?

    I actually read these threads, each several times. I learned a lot. The chemistry was enlightening. I can see that I need a higher level of free Cl to truly rid the pool of lingering algae, SLAM. I will do it. "Your copper level is not good- copper containing algaecides?? Got any stains from...
  7. aehaas

    ? Benefit of Borate Level of 15-20? in SWG Pool?

    I have a 32,000 gal PebbleTech plaster pool here in Florida. It has around 80% sun exposure through the day. The area is screen enclosed. Pool usage is Zero, an expensive decoration. It has a built in hot tub section with a waterfall into the pool with around a foot drop. The aeration from that...