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  1. Chas

    Corrosion and scaling - related to SWG?

    I have a customer with a 10,000 gallon 10x30 rectangle indoor vinyl liner IG pool using a Zodiac Duo-Clear SWG, heated with a Lochinvar ERL 152-8009 gas fired pool heater. My only involvement here was in 2010 when I replaced the liner, installed the SWG and heater. I looked at the pool this past...
  2. Chas

    Cyanuric acid and Chas' AG pool remodel

    I posted a couple of questions in early June '15 re; CYA and iron control after I re-filled my AG pool with its new vinyl liner. Thanks to the great replies I received I've learned and observed some vital facts. I've been in the industry for way longer than I care to think about, yet have...
  3. Chas

    Observations and questions on the TF-100 test kit

    I received my new TF-100 test kit last week. Pretty nice kit! Of course I had to go play with it as soon as it arrived. I especially like the nice crisp colors on the handy small test kit for CL and pH. The colors are so much brighter and easier to see than in my aged Rainbow 78HR kits that have...
  4. Chas

    Mysteries of Cyanuric acid, free chlorine and algae

    Well, this forum added an element of fun and challenge to getting my horrible pool water cleared up during the fresh fill after I replaced my liner. It took 9 days, 144 oz. of iron sequestering chemical, 2 quarts of algaecide, 6 lbs. of shock at three different times, 2 gal. (and counting) acid...
  5. Chas

    Thumper has a hang up on the main drain

    Since the grandkids aren’t around to stir up the pool and help keep it clean, I want to throw Thumper back in to get to work. But – I’m afraid to do this now that there’s a new liner in the pool. Thumper hammered away at the old bag for hours at a time while stuck on the main drain and...
  6. Chas

    Best choice in test kits

    I replaced the liner in my 27’ AG pool with 5’6” center depth this past Memorial Day and filled it with one garden hose through my home’s iron filter. Filled it at half throttle, 600 gallons between regenerations. It took two weeks to fill the 20,000 gallons in this pool. Added 144 oz. of...
  7. Chas

    Sequestering agent and brown water

    Hi all, I'm a newbie to this forum. I look forward to learning and contributing here! Dealing with a fresh fill and high iron content. The 20,000 gallon pool was filled with one garden hose at half throttle over the course of 2 weeks through an iron filter that was regenerated every 600...