Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 15 of 15

Thread: Found Algea around steps

  1. Back To Top    #1

    Join Date
    Aug 2011
    Location
    Blanchard, Oklahoma
    Posts
    26

    Found Algea around steps

    Thanks in advance for the help.

    I found some algae around the steps of my in ground pool. From reading on here I realized I needed to shock the pool. I am using pucks and bagged crystal shock from the pool store.( I know I am going to switch to the BBB method soon) Since all I could test was alk, chlorine, and ph with my test set. My ph was a little low so I put in some Soda ash and then added more pucks directly into the skimmer. I also added 3 bags of crystal shock on Sunday. I started to notice dirt in my pool and I would vacuum and the next day there would be more dirt. So on Tues I got into the pool and started to inspect the steps closer and noticed that the bag of sand( which was placed to hold the steps down by the company that installed the pool had a hole in it and the large zip lock back it was placed in was covered in green algae) So I got that bag of sand out and unsecured the steps and brushed them well to get all the algae off of them. I let the automatic vacuum go all night Wednesday to try to get the remaining sand out of the pool. Thursday night pool was very cloudy, not green but very cloudy. So I turned the pump on high and added 3 more bags of crystal shock and some more pucks to the skimmer basket. Today the pool is just as cloudy without much improvement. I could not monitor my chlorine level because I didn't have the proper test kit. I just knew it was pretty high. I received my TF-1000 test kit today. I was excited to take my first round of tests with it and started with the chlorine test. If I did it correct my FC test was 33 with a CC of 0. I next tested the cya which read 70 or 80. Which I found strange because my last pool store test from 2 different pool stores showed 40 2 weeks ago and I have drained over half of my water to repair a slipping liner a week ago. Is it possible that my chlorine is so high that it is making my cya test inaccurate? Please help!!! My daughter is having a pool party Sunday night and is going to be upset if they can't use the pool.
    30ft x 54in AGP 24,900 gallons
    400 lbs High Rate Sand filter
    2HP, 2 speed pump
    Pool Install April 2012

  2. Back To Top    #2

    Join Date
    Sep 2009
    Location
    Greentown, IN
    Posts
    914

    Re: Found Algea around steps

    If you are using pucks and granular shock you are continually adding cya to your pool... get yourself some liquid chlorine or bleach pronto!

    Read through pool school, order yourself a good test kit, and read the section on how to shock your pool several times to get a good grasp of it.

    Pool store results are notoriously inaccurate as many on here will attest to. I would imagine if you asked them to test you water and then handed them an identical sample you would likely get two different readings.
    Indiana, ABG 24'x52" Galveston by Blue Cascade (Craigslist buy w/part of deck included), 13,500 gallons, Intex SWG, solar panels mix 2, TF-100 test kit.

    Test kits compared
    Purchase test kits

  3. Back To Top    #3

    Join Date
    Aug 2011
    Location
    Blanchard, Oklahoma
    Posts
    26

    Re: Found Algea around steps

    I have read pool school and I just received my test kit that is how I got the cya test. I have also read the shocking process and I am now switching to bleach. I have shocked the pool and can keep it up, but I was wondering if that High level of chlorine could and clowdy water could mess with the cya test. I need to know that so that I can keep my pool at shock levels. Thanks for the help.
    30ft x 54in AGP 24,900 gallons
    400 lbs High Rate Sand filter
    2HP, 2 speed pump
    Pool Install April 2012

  4. Back To Top    #4

    Join Date
    Mar 2012
    Location
    Amarillo, Texas
    Posts
    341

    Re: Found Algea around steps

    High levels of chlorine don't have any effect of your CYA level. Probably adding that much shock has raised it recently.
    18'x48" AG
    Pentair 1 1/2 HP Dynamo Pump
    Sand Dollar Sand Filter w/ Zeobrite
    Lil Shark Vacuum System
    Hard Plumbed

  5. Back To Top    #5
    ajackson's Avatar
    Join Date
    Jul 2012
    Location
    Central Ohio
    Posts
    76

    Re: Found Algea around steps

    okstpat. Hi there I just wanted to put in my 2 cents... I had my CYA tested at pool store and they told me it was 30. 1 week later it was 35 they told me to add some stabalizer to bump it up some. So I did.. Then I found this site and got my proper test kit... My cya was really 160.. so I had to drain 1/2 mine to.. could have used somemore.. but I didnt want to risk wrinkles in the liner.
    I will never be putting pucks in my pool again.
    14500k inground, vinyl, built in 2007
    Hayward Sand Filter, 1hp Hayward pump, AquaCal electric heat pump
    Taylor K 2006

  6. Back To Top    #6

    Join Date
    Aug 2011
    Location
    Blanchard, Oklahoma
    Posts
    26

    Re: Found Algea around steps

    Well I guess since I am at shock level even with my cya level being high I will keep it up until it clears up and only use bleach from now on. I hate to drain again with about a month left in the season. I am glad to get my test kit, hopefully I don't ever have to depend on a pool store to tell me what to do for my pool anymore. Thanks for the responses and if any one else can offer assistance I would appreciate it. Thanks.
    30ft x 54in AGP 24,900 gallons
    400 lbs High Rate Sand filter
    2HP, 2 speed pump
    Pool Install April 2012

  7. Back To Top    #7

    Join Date
    Aug 2011
    Location
    Blanchard, Oklahoma
    Posts
    26

    Re: Found Algea around steps

    I think I may have been a little off on my testing yesterday. I took two rounds of tests today and this is what I came up with.

    FC=16
    CC=0
    CYA=70
    TA=50
    pH=7.2

    Now to the pool calculator
    30ft x 54in AGP 24,900 gallons
    400 lbs High Rate Sand filter
    2HP, 2 speed pump
    Pool Install April 2012

  8. Back To Top    #8

    Join Date
    Aug 2011
    Location
    Blanchard, Oklahoma
    Posts
    26

    Re: Found Algea around steps

    Ok starting to get frustrated now please help. Last Sunday morning I passed over night chlorine loss test I lost .5 and my pool was fairly clear. So I allowed my FC level to move back down never letting it get below 6.5 which should be ok since my cya is 70. Tuesday night I noticed that I had some algae begin to form on the bottom of the pool. So I raised my chlorine back up to shock level, in fact I have stayed fairly consistently in the 30's. I just went by the house and I can still see some algae coming back. How long should I have to shock? My pool is clear just not sparkling. I guess I am just wondering how long the shock process takes. My son's baseball team is having there team party in the pool on Sunday, should I be ok by then? Any help would be appreciated.
    30ft x 54in AGP 24,900 gallons
    400 lbs High Rate Sand filter
    2HP, 2 speed pump
    Pool Install April 2012

  9. Back To Top    #9

    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
    Posts
    12,082

    Re: Found Algea around steps

    It sounds like you may have poor bottom circulation. You might consider pointing one of the returns downward towards the area where algae seems to form. Also, is this algae only on the shady side of the pool and is it dust-like or is it more like traditional green algae that doesn't disappear when you try to capture some of it? Don't forget that brushing is part of the shocking process.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

  10. Back To Top    #10

    Join Date
    Aug 2011
    Location
    Blanchard, Oklahoma
    Posts
    26

    Re: Found Algea around steps

    I only have one return and it is pointed downwards. I have been brushing at least once a day on the entire pool, and usually hit the parts that I can see algae in 2 or 3 times a day. When I brush it up it tends to dust up into a green cloud and then disperses. The water no longer has the green tint to it that it did when I first brought it up to shock level last week, but I still get the algae back. Overall considering I have algae in my pool, my pool is pretty clear.
    30ft x 54in AGP 24,900 gallons
    400 lbs High Rate Sand filter
    2HP, 2 speed pump
    Pool Install April 2012

  11. Back To Top    #11

    Join Date
    Mar 2007
    Location
    San Rafael, CA USA
    Posts
    12,082

    Re: Found Algea around steps

    You have a 25,000 gallon pool with only one return? OK, then. Maybe you'll need to either maintain a higher FC/CYA ratio or use some supplemental products. You can't get very good circulation with one return in a pool that size. At best, you can point diagonally downward to try and produce a swirling effect and hopefully have a high flow rate, but doing that probably won't circulate near the surface very well (including the stairs).
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

  12. Back To Top    #12

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,084

    Re: Found Algea around steps

    Overall considering I have algae in my pool, my pool is pretty clear.
    How do you know it is algae? From your history and description of chlorinating, it sounds more to me like you are seeing DEAD algae accumulating in the bottom of your pool.

    Does it puff up into a cloud when you brush it? Is it sorta' brownish-greenish-yellowish? Do you have a pic? that might help.

    Mostly, algae shouldn't exist in the conditions you are describing so I am thinking you are simply seeing the "debris" of the dead algae the chlorine has been killing.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  13. Back To Top    #13

    Join Date
    Aug 2011
    Location
    Blanchard, Oklahoma
    Posts
    26

    Re: Found Algea around steps

    Yes it does just puff into a cloudy dust when I brush it. So it may benot just deadpuff algae, but i have brushed and vacuumed many times the past week. I went ahead and went to the pool store and bought some algaecide and put it in now. We just got an inch of rain here ! Yay we really needed it.
    30ft x 54in AGP 24,900 gallons
    400 lbs High Rate Sand filter
    2HP, 2 speed pump
    Pool Install April 2012

  14. Back To Top    #14

    Join Date
    Aug 2011
    Location
    Blanchard, Oklahoma
    Posts
    26

    Re: Found Algea around steps

    Sorry about that last post. My phone and autocorrect didn't like it much. Lol
    30ft x 54in AGP 24,900 gallons
    400 lbs High Rate Sand filter
    2HP, 2 speed pump
    Pool Install April 2012

  15. Back To Top    #15

    Join Date
    Aug 2011
    Location
    Blanchard, Oklahoma
    Posts
    26

    Re: Found Algea around steps

    Just an update I allowed the FC to go down to 21 so that the boys could swim at the team party and vacuumed the stuff of the floor before they got there. The pool was decently clear but not crystal clear. It did get cloudy with the 12 boys in there and then began to clear late last night. I checked this morning and there was no noticeable stuff on the floor of the pool. I will check again tonight.
    30ft x 54in AGP 24,900 gallons
    400 lbs High Rate Sand filter
    2HP, 2 speed pump
    Pool Install April 2012

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •