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  1. cfherrman

    1st SLAM, persistent floor algae

    Over by the robot the floor was clear of debris, you can kinda see a line in the last picture where there is debris and not. Took 3 backwashes and I got most of it with the vaccum. Pic uploader didn't work yesterday and I was buzy. Tested 3 times over the course of the day, if I recall 8, 6.5...
  2. cfherrman

    1st SLAM, persistent floor algae

    I backwashed a few days before, I run my filter from 11->14 psi typically. I started yesterday at 11 psi and now I am at 13. July 5 8:30am test and remove robot FC 7 Cc 1 I think I may have broken the algae production as the fc was dropping faster before, only took 2.5 gallons of 10%. I'm...
  3. cfherrman

    1st SLAM, persistent floor algae

    1130 pm, test brush robot dose FC 4.5 Before, look at water clarity! After brushing
  4. cfherrman

    1st SLAM, persistent floor algae

    Wait till the morning, I certainly hope for better but we will see
  5. cfherrman

    1st SLAM, persistent floor algae

    I'm calling this my 1st slam because I've only had to bump the clorine twice in the 4+ years of tfp style of pool care, didn't really need to hold the fc to fix the problem. I think my problem started last year of floor algae taking ahold in the creases and wrinkles of the liner and inside my...
  6. cfherrman

    One pool guy told me that Black algae is almost impossible to kill. Is it true?

    Easy thing for beginners, if it's solid or a powder clorine product, do not use
  7. cfherrman

    Killer CYA - Stuck - HELP!

    There is the tarp method where you drain and fill at the same time and the tarp keeps the two bodies of water separate untill you get done.
  8. cfherrman

    Ultima T.K.O. to shock a saltwater pool?

    Reading the thread and then rereading the thread I would agree you got a very stiff response and it doesn't feel good. Sounds like your pool is mostly clear? If so you should be able to limp along and keep it clear. 1 lb of 73% cal hypo adds 3.2 fc, 2.3 ch, and 3.3 salt. Feel free to use it to...
  9. cfherrman

    Chlorine disappears rapidly and - How to care for pool at rental

    Either take the pool out if service or the rental, you wouldn't still be renting the place if the heater broke no? Get a game camera for the pool for short term and long term a actual camera system so you can charge people when they damage your pool, such as peeing in the pool. Boost with...
  10. cfherrman

    Clear Blue Water but still new algae everyday

    Ok ok, slow it down. Is your cya 30? If so do not go above 12 FC! you are losing FC due to the sun because you are going way too much above shock level if 12.
  11. cfherrman

    Clear Blue Water but still new algae everyday

    How did you add the cya and how much?
  12. cfherrman

    Algae keeps coming back after SLAM

    Algae does firm a biofilm to protect against FC, that's why brushing is so important
  13. cfherrman

    Is something else making my pool green?

    The dirt killed your FC, algae entered the pool and grew
  14. cfherrman

    losing my patience

    Looks like you still have algae. Keep brushing! Do you have a vacuum? To get stuff off of floor, Fire it up scrub a 2' circle and leave it in the center for 15 mins, repeat a new spot
  15. cfherrman

    Algae keeps coming back after SLAM

    You probably have phosfree with clarifiers, check the bottle. Taylor sells a phosphate test. This is close to a last resort kind of thing. Idk on the brush, I would say it can lt make your plaster smoother as it's like using sandpaper on it. Typically a 0 ta treatment is to get rid of calcium...
  16. cfherrman

    Algae keeps coming back after SLAM

    Things to consider Getting a robot, they clean very well and get crud you can't see off the floor, I'm not sure the spot you are referring to a robot can reach. Definitely do the 20% cya treatment, you might just have to run more FC till you find the culprit. Treat your plaster with a 0 ta...
  17. cfherrman

    Do I need to SLAM

    Just do a sub slam at 30% cya, it's safe and they won't notice, then when they leave do full slam.
  18. cfherrman

    Do I need to SLAM

    If you have a question on slamming you can just slam, it will be easy and quick if you didn't need to. Call your cya 30
  19. cfherrman

    Pre-Liner Replacement Cleanup

    Slam it and once all the green is gone but it's really hazy turn the pump off and wait a couple of days for the dead algae to fall to bottom, should be good then and plenty clear enough
  20. cfherrman

    SLAM with cal hypo?

    Pool looks great, have you tried any oclt? I would start looking in the nooks and crannies for hidden algae. Lights, ladders, stairs, any dead spots they can hide. You got this, you will win just find where it's living at.
  21. cfherrman

    SLAM with cal hypo?

    Switch to 5 mil tests, they are not very accurate, and order a fas-dpd refill from tftestkits.net right now, then go back to 10 mil tests when you get the refill. You got this, so many people have done what you are doing exactly, just keep at it.
  22. cfherrman

    SLAM with cal hypo?

    Sorry I misunderstood! You can use whatever you want for your pool as long as you know what you are putting in your pool and it's effects. Solid clorine forms have bad side effects but if you plan ahead it's definitely ok. If you get a lot of rain and/or have low ch fill water Cal hypo becomes...
  23. cfherrman

    SLAM with cal hypo?

    Bleach is typically the cheapest clorine. If your FC was 8 and cya 50 your not doing a slam, your just wasting time and money. Slam the correct way per the article is the cheapest and fastest way
  24. cfherrman

    Anything to do for algae before opening?

    Pour in some bleach and brush it around to keep the green away, there are some problems with this though. Warm water temps will make it a every day or every couple day thing. If your water doesn't have cya in it it will go away from the sun or you might have too high of a FC level in your pool.
  25. cfherrman

    Neighbor's Pool....

    People will never believe our system untill rock bottom, so I would go with.... "Hey I got some extra time when I mess with my pool, I can do yours while I'm at it for just chemicals, min run around $20 a month."
  26. cfherrman

    Bleach Buying Season...How Much to Buy?

    Price check 6%, it's typically the same or better than 10% and will keep 6 months
  27. cfherrman

    Efficient use of bleach

    Keep max FC at 40% cya, 7.5% min. It's more expensive your way but its still safe and sustainable. Look inti a swg or a clorine injection
  28. cfherrman

    Opening pool, 18 days into SLAM, considering but nervous about adding DE

    I used the hth de filter aid from Walmart. My pump is small so I do have to babysit it and I only use it on the weekends. In a slam you will need to be around for it.
  29. cfherrman

    Draining Intex AGP full of algae

    You can use the vac like you thought but when the water level drops your setup has to be perfect, any air leaks will cause you to lose prime then you start fighting it. If you start with a full pool and a primed vac, and duct tape all the connections, start the pump with circulation (put the...