slam

  1. C

    SLAM and chlorine tablets?

    Hello- I just discovered the TFP website a few days ago and got right to work. We put in our first pool last year and spent too much time and money at the pool store only to continue to always have problems so I am excited to get on board with TFP! My question is: we are currently SLAMming due...
  2. W

    Cloudy water

    New here. This is our fourth year with the pool, but this has been the most challenging year ever to get it clean and clear. We don't know what the heck is going on. I think we got behind on chlorine and are playing catch up. The pool has been cloudy with some green tint since opening it...
  3. P

    2nd time SLAM - help me do better this time!

    Hi all, Thanks to TFP, our pool opening went better than ever (although, I SLAMmed a smidge/alot too long). My FC level has been 0 the past couple of days, but the pool is clear, so I am SLAMming again. Help me get this right! Here are the starting numbers on 6/11: FC=0 TA=160 pH=8.2 CH=200...
  4. L

    SLAM-ing - Marathon or Sprint - Overnight FC Loss

    I've been sitting in the back pew of the Church of TFP for a few years and just moved down to the front pew. Now, I want to make sure I'm singing out of the correct hymn book. (Eye rolls are OK from anyone not from Texas or the South :)) Background: A few weeks ago, my pool was Army green --...
  5. TerriP

    Same green start to season

    Hi all! Uncovered my pool I. May and it was almost clear but lots of leaves at the bottom. Winter cover had a rip in it. Filled to skimmer level and began to filter. Life got in the way and a week without attending to pool equals a greenish brown mess. There are so many little seeds, tree...
  6. Tinkertoy721

    High CYA, drained, now what?

    My husband and I bought our home last spring and it came with a pool that hadnt been opened in a year. The cover was ripped and the water was basically black. We removed the cover last summer because it was just shedding into the pool. We weren't living in the house yet so we couldn't devote...
  7. H

    Mustard algae treatment with higher CYA (75)

    Hello all. So my pool developed mustard algae, I think after the chlorine level decreased when I left town and with the heat and water evaporation, the water level went below the skimmer and warped some of the pipes, making the pump lose prime and stop working. The mustard algae, which I had...
  8. M

    Possible mustard algae will not go away

    We are shocking using the slam method for mustard algae and we are not making progress after about 32 hours. Chlorine just dropped in the few hours we were at a baseball game after holding for most the day. I’m even using a bit higher amount of chlorine to try to beat it. Our alkalinity will...
  9. Oregonpool214

    If my CYA dropped mid-slam, do I have a new SLAM CHLORINE GOAL?

    The saga continues ..... I‘m a few days into a SLAM from a tadpole oasis to (hopefully) a human oasis, and was seeing cya in the 50-60s. I finally got up to FC of 24 or so last night, but today, midday, had a cya level of ~20-30. Did some reading here and saw that sometimes cya can drop when...
  10. Oregonpool214

    Have I set myself up for failure, and how much chlorine have I wasted?

    Hello all. I'm feeling a little sheepish tonight as I've spent the last 4 or 5 days trying to clean up my swamp, and overlooked my CYA to chlorine SLAM value, so have (I think) been chronically UNDER chlorinating during my SLAM. But, I'm also running into some results I don't quite understand...
  11. K

    Is this Black Algae?

    This is my first post, and I can’t tell you how thankful I am for this community. We had some algae and started a slam. Usually, the slam clears everything up, but there are some stubborn black stains. I think it might be black algae and have been brushing it a few times a day with a steel brush...
  12. S

    pH Levels and CYA prior to SLAM

    New user and first time pool owner here, sorry if this is the wrong place to post! We opened a pool a bit late and the pool was pretty green. I'm assuming FC level to be 0 due to the algae. I bought the tf100 test kit and we tested TA, CYA and pH last night. Vinyl pool, ~32K gallons TA 160...
  13. E

    Day3 of SLAM - Question?

    Hi Everyone, I opened my pool last week and got almost all of the visible organics out. I’m on Day 3 of the SLAM. My CYA was high 70, so I needed to get FC up to 28 according to the chart. I’m almost there - FC dropped a little bit after the first day, and I added some additional chlorine...
  14. dclynds

    48 hrs into SLAM and the yellow in my plaster isn't disappearing

    Hi all. I started a SLAM 48+ hours ago because I noticed what I thought was yellow colored algae in various spots around the pool. It doesn't seem to be disappearing and I can't rub it away with my finger with vigorous scrubbing so could these spots be some sort of stain in the plaster? And if...
  15. T

    What am I doing wrong?

    In January, I bought a house that came with a hot tub (manufactured 2003). The previous owner said it had been sitting empty for a couple of years, but worked fine. Inside looked clean. Filled it up, balanced the water and starting around 3 weeks it was forming a chemical smell and by 6 weeks...
  16. TXMagnolia

    SLAM has plateaued/stains remain

    Our pool was stagnant since the TX ice/snow storm in February due to waiting on new (Polaris) pump. Temps warmed up in March and turned our pool into a swamp. I read up on threads and started my SLAM on April 10. I got water cleared up after a few days but am left with yellow-green splotchy...
  17. B

    SLAM - How Long????

    CYA - 40ppm Current FC - 22ppm Current TC - 0PPM Water is clear. Chlorine loss overnight is ~5-6ppm Cartridge Filter System Plaster pool *My pool was in BAD shape. I normally would have drained it, but I decided to do the SLAM to kill everything in the pipes, filter, etc... I am on day 15 at...
  18. R

    Shock level and when to SLAM?

    My SWG was off for the winter. Last week, my FC level had dropped to 0.5 or 0. I noticed some color in the corners and hoped it was pollen, so I raised the FC to around 10 bc that was all the dichlor I had. finally did a filter clean today and color is back in corners. Think I need to SLAM, but...
  19. R

    SLAMing Hot Tub with Ozonator

    After some hot tub rash, I've been SLAMing my covered hot tub (using the 13ppm FC recommended in the PoolMath app). With 33ppm CYA, I've been raising the FC to 13 ppm 2-4 times throughout the day, testing at the end of the daylight (about 4pm) and then testing again the next morning (about...
  20. A

    Need to drain pool, uncertain about plumbing setup

    I recently rented a home with a pool, and I’m responsible for maintaining it. When I got here the pool was crystal clear, but I had no concept of how to care for it. The landlord said he would have his handyman come teach me how to take care of it. I didn’t know the pool should be checked and...
  21. C

    OCLT affected by cold air/warm water?

    FC: 15.5 CC: .5 CYA: 40 Ph: 8.0 TA: not recently measured I’ve been in SLAM mode for four days (Keeping FC 16-17ppm). The reason: The pool hadn’t been swam in for a week. Yellow/brown sediment on the bottom, but not the sides. I believe it was pollen (based on forum posts I read here). I...
  22. aegeansoulja

    Slow growing green algae despite good numbers!

    Hi all, I have been fighting green algae accumulation and proper LSI balance in our pool all summer without success. Any help would be appreciated! The pool water is not green, but green algae is slowly growing on the pool sides despite good FC levels and slamming. I started in mid July...
  23. wille

    Again... more bleach?

    I have a SWG pool and my tests call for more bleach every few days. I am increasing the SWG percentage and am now up to 35%, which is high for me. The water is very clear. I need to add some stabilizer, but before that, I thought that I'd ask the pool brains, do I need to SLAM again? 93* every...
  24. M

    Algae, followed the SLAM criteria, here's what I've done and measured (timline), still blue & cloudy

    Hi there TFP folks! Name's Matt, I'm a newbie (both here on the site and as a pool owner). I've lost faith in local pool store folks, they only appear to want to sell me chemicals (and lots of em!). I've been silently following the prescribed SLAM instructions on this site. I'm an engineer and...
  25. Earthman Bob

    End SLAM, Overnight Test and Marble Dusting

    Background: At the beginning of June, I hired a pool company to marble dust our pool. At the time, they said they were three weeks out. So I figured I would leave the pool closed until they did the work. I was busy and figured (apparently incorrectly) that they would be blasting the surface...
  26. N

    SLAMming with no CC, FC drops

    I’ve begun the slamming process and I just want to make sure I’m not crazy. I know zero CC is the ideal outcome so I ‘think’ I’m still on the right track. I added a bunch of chlorine last night, that brought FC from 0 to 8 this morning. Added more, FC went to 12 (this was at 7:20am ET). Each...
  27. L

    Question regarding SLAM and continuous filtering

    As I understand it when you SLAM you load the pool and keep it loaded with chlorine while you run the filter continuously. My very green pool was just opened for the season and filter pump pressure goes up from 12 psi to 20 psi in just a few hours as the filter does its work. Is it safe to run...
  28. S

    Need help with a SLAM

    I had success SLAMing my pool the first time I tried in 2017 with the help of TFP (I think my original post is still up) but this time I'm having a lot of issues and starting to lose hope. Long story short - in the summer of 2018 my pool motor and booster pump went out. As you can imagine the...
  29. K

    SLAMMING in June in Texas

    Hi everyone, I live in Dallas, Tx and need to SLAM my pool. Temp this week could reach close to 100. Is the a bad time to SLAM (ie, summer heat) the pool?
  30. P

    Add CYA first or Vacuum/Chlorine?

    Hi Guys, I need to SLAM my pool as it is pretty dark and gross looking. PH - 7.4 TA - 80 CYA - Below 30 Now I know CYA needs to be at least at 30 before I SLAM but currently my jets will start to slow due to the algae in the pool. What I'm wondering is should I just start adding chlorine and...