Recent content by jmb

  1. J

    I am looking for recommendations for a vacuum head for a vinyl liner

    Thank you for your reply. As regards the Hayward triangle brush head are your referring to this one ...
  2. J

    I am looking for recommendations for a vacuum head for a vinyl liner

    Thank you for your reply. This looks very similar to the one I have that I like quite a bit. How often do you need to replace it. I know this will depend on how long of a pool season you have but I am just trying to get a general idea. Mine is old but i still keep it as I have purchased others...
  3. J

    I am looking for recommendations for a vacuum head for a vinyl liner

    Thank you for your reply. 😊 I am not sure what you mean by a regular vac head? Do you have a picture or a link to one I can look at or to purchase so I can see it? We use a Polaris Pool cleaner most of the time. We clean manually at the beginning of the season to get the bulk of the debris...
  4. J

    I am looking for recommendations for a vacuum head for a vinyl liner

    I am looking for recommendations for a vacuum head for an inground pool with a vinyl liner. I would like to get a good quality one with good bristles that do not fall apart. Also, how long should I expect a quality head to last if it is well cared for. Thank you.
  5. J

    How to balance killing algae and accurately testing CYA and pH levels when opening pool

    My question is that we just removed our pool cover and opened the pool. The filter has not been running. I will not get accurate readings when testing for CYA and pH until I have run the pool filter for 24- 48 hours. In the past when we have opened the pool without algae we have been able to...
  6. J

    How to balance killing algae and accurately testing CYA and pH levels when opening pool

    We have been successfully following the SLAM process for opening our pool annually. This is the first time in several years that we have significant algae when opening the pool. I understand the SLAM process but this year I am a bit stumped. In the past without algae issues we ran the filter...
  7. J

    Should FC ever be added after adding Polyquat 60 when closing the pool?

    Thank you. I have learned so much from this site. I have had excellent results following the recommended procedures.
  8. J

    Should FC ever be added after adding Polyquat 60 when closing the pool?

    Thank you ajw22 for your reply and reference to the article. I have posted a follow up question.
  9. J

    Should FC ever be added after adding Polyquat 60 when closing the pool?

    The article referenced by AJW22 states " As they recommend for proper winterization, the pool should be "shocked" with about 5-10ppm chlorine to destroy any lingering oxidant demand and remove any residual ammonia or chloramine, etc. After a couple of days, adjust the pH back to 7.2-7.6 and then...
  10. J

    Should FC ever be added after adding Polyquat 60 when closing the pool?

    Is there an ideal level that FC should be at after adding polyquat 60? I added the Polyquat 60 when the FC was at 1/2 slam level and will let the pool motor run for 24 hours. I have read that you should not adjust the FC after adding Polyquat 60. I am just wondering how stringently this rule...
  11. J

    Need to add liquid chlorine without pump running; will brushing walls with Whale brush & using polaris cleaner be enough to disperse the chlorine?

    Thank you! Great suggestion to spread it around gradually in separate areas, pour a little, brush a little. Makes a lot of sense.
  12. J

    Need to add liquid chlorine without pump running; will brushing walls with Whale brush & using polaris cleaner be enough to disperse the chlorine?

    We just opened our pool on Friday evening June 2, We were able to test the pool water for stabilizer, pH and alkalinity and then added 10 L of liquid chlorine at 10.8 %. Per Pool Math this should raise the chlorine in our size pool by 10 ppm. The water was fairly clear; we do not see algae but...
  13. J

    Are CYA readings easier to read at levels greater than 50 than below 50?; plus inquiry effects of adding CYA? CYA raised much more than anticipated.

    I’ve always used the fill to the line method and just look once. Thank you for your reply. I have used the 50 ppm standard that you mention and it is helpful as a guide. Using the standard the black dot is obscured but I can still see the black dot so I aim for something between complete...
  14. J

    Are CYA readings easier to read at levels greater than 50 than below 50?; plus inquiry effects of adding CYA? CYA raised much more than anticipated.

    In mid August I waited at least 5 days to test CYA. After 5 days my CYA raised as expected from about 20 to 30. In late August after adding the additional 1500 grams to raise my CYA from 30-40 we retested after about 5 days and the CYA was about 40. We retested agin after about 9 days to...