Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 16 of 16

Thread: Algaecide first then shock?

  1. Back To Top    #1

    Algaecide first then shock?

    I also have a question. Do I shock 1st, then let rest for a day (simmer down), then add the algaecide (Kem-Tek 60% Concentrated Algaecide) ..?? or Algaecide first then shock.
    I thought I was told the shock would kill the algaecide..?
    22K gal Plaster, 3M color, (4) Sta-Rite Max-E-Pro pumps (P6E6G-208L), Sta-Rite System 3 Filter (Sm8-500),
    Pentair Intellitouch System I9 + 3,Pentair Intellitouch System I10X Expansion center, Intellitouch Spa remote.
    Helicoil Solar Heating, Sta-Rite SR400 (Propane) Heater
    (3) PG2000 Illuminators, Pentair 320 Chlorine Feeder, Zodiac Nature2,
    Pool Shark (GW7700), All Jandy Neverlube valves (with Actuators), Jandy Check Valves.
    Sam Light Spectrum Amerilite (color changing w/color swim) SaL (color changing w/color swim,also)
    Pentair Auto Fill ... 100% real Rock all Hand picked, no concrete formed rocks, or slab

  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Kem-Tek 60% Algaecide

    Algaecide works better as a preventative than a fix. SLAM, then add it when things have simmered down.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  3. Back To Top    #3
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Kem-Tek 60% Algaecide

    So why not just maintain adequate FC after the SLAM process and forget the algaecide?
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  4. Back To Top    #4
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Algaecide first then shock?

    There is no reason to use algaecide in that situation. It won't help clear up an algae bloom.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  5. Back To Top    #5
    Smykowski's Avatar
    Join Date
    Sep 2011
    Location
    Gurnee, IL (North Suburban Chi-town)
    Posts
    3,065

    Re: Algaecide first then shock?

    Since switching to TFPC, I have never used algaecide, and that includes the closing process.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

  6. Back To Top    #6
    Charlie_R's Avatar
    Join Date
    May 2013
    Location
    Mexico, MO
    Posts
    2,156

    Re: Algaecide first then shock?

    Curious -- Did a Pool store tell you to add the algaecide?
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

  7. Back To Top    #7

    Join Date
    Mar 2014
    Location
    Thomson GA
    Posts
    166

    Re: Algaecide first then shock?

    Speaking from experience -- My blonde granddaughter has green tinted hair all summer and fall from the copper in the algaecide. The shampoos that are supposed to remove it don't. I blamed it on chlorine but have researched it and found it is the algaecide. You do not need it if you use the methods in this forum.
    Gerry
    27' x 54" AG Salt Water Pool Installed 2014, Hayward 23" Sand Filter, 1 HP 2-Speed Power-Flo Matrix Pump, AQ-TROL SWG, TF-100 Test Kit

  8. Back To Top    #8
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Algaecide first then shock?

    There are several different kinds of algaecide. One foams, one stains hair green, another uncommon kind is alright to use. There isn't any kind that both foams and stains hair.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  9. Back To Top    #9

    Join Date
    Mar 2014
    Location
    Thomson GA
    Posts
    166

    Re: Algaecide first then shock?

    Thanks Jason I did not know that.
    Gerry
    27' x 54" AG Salt Water Pool Installed 2014, Hayward 23" Sand Filter, 1 HP 2-Speed Power-Flo Matrix Pump, AQ-TROL SWG, TF-100 Test Kit

  10. Back To Top    #10

    Re: Algaecide first then shock?

    No I believe it was a tech working on my Intellitouch system.
    22K gal Plaster, 3M color, (4) Sta-Rite Max-E-Pro pumps (P6E6G-208L), Sta-Rite System 3 Filter (Sm8-500),
    Pentair Intellitouch System I9 + 3,Pentair Intellitouch System I10X Expansion center, Intellitouch Spa remote.
    Helicoil Solar Heating, Sta-Rite SR400 (Propane) Heater
    (3) PG2000 Illuminators, Pentair 320 Chlorine Feeder, Zodiac Nature2,
    Pool Shark (GW7700), All Jandy Neverlube valves (with Actuators), Jandy Check Valves.
    Sam Light Spectrum Amerilite (color changing w/color swim) SaL (color changing w/color swim,also)
    Pentair Auto Fill ... 100% real Rock all Hand picked, no concrete formed rocks, or slab

  11. Back To Top    #11

    Re: Algaecide first then shock?

    I was doing a little research, I have an EZ-Flow fertigator (fertilizer injector), and I am using MegaGreen (Hydroslated fish, which rocks) but I do believe I am getting "drift" from a group of sprinkler near the pool. MegaGreen is famous for making algae thrive. Looks like a need a "Hanna Instruments Checker HC Handheld Colorimeter, For Phosphorus", and some "Natural Chemistry 05121 Phos Free Pool Cleaner" may have to tweak the sprinkler system a bit also. Thank You all for the input.
    22K gal Plaster, 3M color, (4) Sta-Rite Max-E-Pro pumps (P6E6G-208L), Sta-Rite System 3 Filter (Sm8-500),
    Pentair Intellitouch System I9 + 3,Pentair Intellitouch System I10X Expansion center, Intellitouch Spa remote.
    Helicoil Solar Heating, Sta-Rite SR400 (Propane) Heater
    (3) PG2000 Illuminators, Pentair 320 Chlorine Feeder, Zodiac Nature2,
    Pool Shark (GW7700), All Jandy Neverlube valves (with Actuators), Jandy Check Valves.
    Sam Light Spectrum Amerilite (color changing w/color swim) SaL (color changing w/color swim,also)
    Pentair Auto Fill ... 100% real Rock all Hand picked, no concrete formed rocks, or slab

  12. Back To Top    #12

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

    Re: Algaecide first then shock?

    If you maintain the appropriate FC level for your CYA level, then chlorine will kill algae faster than it can grow regardless of algae nutrient (phosphate and nitrate) level. There are members on this forum with 3000 ppb, 5000 ppb, and even 20,000 ppb phosphate who prevent algae using chlorine alone.
    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"

  13. Back To Top    #13

    Re: Algaecide first then shock?

    I have been having trouble keeping my FC level where it should be, I was just rinsing my cartridges (500 sq.ft.) with water only, I have a 100 gallon plastic horse trough I bought at Lowe's and just received 4-10lb boxes of cascade I ordered from Wal-Mart. Time to use the advice from TFP and soak my cartridges overnight. I have two sets of filters so may downtime is minimal while one set soaks. 20K ppb kept in check by chlorine only...wow. Thank You for the information. I will tighten my FC game.
    22K gal Plaster, 3M color, (4) Sta-Rite Max-E-Pro pumps (P6E6G-208L), Sta-Rite System 3 Filter (Sm8-500),
    Pentair Intellitouch System I9 + 3,Pentair Intellitouch System I10X Expansion center, Intellitouch Spa remote.
    Helicoil Solar Heating, Sta-Rite SR400 (Propane) Heater
    (3) PG2000 Illuminators, Pentair 320 Chlorine Feeder, Zodiac Nature2,
    Pool Shark (GW7700), All Jandy Neverlube valves (with Actuators), Jandy Check Valves.
    Sam Light Spectrum Amerilite (color changing w/color swim) SaL (color changing w/color swim,also)
    Pentair Auto Fill ... 100% real Rock all Hand picked, no concrete formed rocks, or slab

  14. Back To Top    #14
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Algaecide first then shock?

    IF you are already having problems maintaining your FC level, then it may be too late and there may already be algae growing in the pool. If you Perform the Overnight Chlorine Loss Test you can determine if there is something in the water and then start the SLAM Process.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  15. Back To Top    #15

    Re: Algaecide first then shock?

    Excellent, I will perform the overnight test.Thank you
    22K gal Plaster, 3M color, (4) Sta-Rite Max-E-Pro pumps (P6E6G-208L), Sta-Rite System 3 Filter (Sm8-500),
    Pentair Intellitouch System I9 + 3,Pentair Intellitouch System I10X Expansion center, Intellitouch Spa remote.
    Helicoil Solar Heating, Sta-Rite SR400 (Propane) Heater
    (3) PG2000 Illuminators, Pentair 320 Chlorine Feeder, Zodiac Nature2,
    Pool Shark (GW7700), All Jandy Neverlube valves (with Actuators), Jandy Check Valves.
    Sam Light Spectrum Amerilite (color changing w/color swim) SaL (color changing w/color swim,also)
    Pentair Auto Fill ... 100% real Rock all Hand picked, no concrete formed rocks, or slab

  16. Back To Top    #16
    Casey's Avatar
    Join Date
    Apr 2007
    Location
    SW PA
    Posts
    10,157

    Re: Algaecide first then shock?

    Keep us updated and continue to read Pool School.
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

Posting Permissions

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