Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 19 of 19

Thread: very milky pool

  1. Back To Top    #1

    Join Date
    Mar 2009
    Location
    eastern washington state
    Posts
    275

    very milky pool

    Hi Boys and Girls... Well not starting the season off to good... I got my pool opened 9 days ago. Took the cover off to find a green pool and Allot of dirt in the bottom... The dirt blow off one of my fields during the winter...before we had snow...
    Anyway got the dirt out and got it up to shock level and the filter has been running 24/7 for nine days... it now seems to be very very milky looking. does not seem to be getting any better... Is this the results of the dead Algae.. and will it be filter out... i saw a post on here saying that you have to vacuum the algae out... i can not turn the pump off at night to let it settle to the bottom... I need some good advice on what to do next... my numbers are post and don't look to bad...
    Thanks guys/gals
    jim

    FC 20.5 well above shock level for 40 CYA
    CC 0
    PH 7.3 7.4
    TA 60
    CYA 40
    live in eastern washington state
    18x36, Vinyl inground 24k
    Hayward 1 hp filter pump
    1 skimmer/2 returns
    24" sand filter, polaris 280 with booster pump.

  2. Back To Top    #2
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,347

    Re: very milky pool

    Have you done an OCLT (Overnight Chlorine Loss Test)?

    If you have and passed it, then I'd let the pump run a few more days to see if it clears up. It can take a while for the filter to clear it up after an outbreak.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  3. Back To Top    #3

    Join Date
    Mar 2009
    Location
    eastern washington state
    Posts
    275

    Re: very milky pool

    yes i have done an over night test and it stayed the same.. no loss..
    live in eastern washington state
    18x36, Vinyl inground 24k
    Hayward 1 hp filter pump
    1 skimmer/2 returns
    24" sand filter, polaris 280 with booster pump.

  4. Back To Top    #4

    Join Date
    Mar 2009
    Location
    eastern washington state
    Posts
    275

    Re: very milky pool

    is the milkiness from dead algae? And do i need to keep it at shock level until it clear up?
    Also would it help to put some DE in the Sand filter to help trap the algae, I have used it before and really did not see much of a difference
    live in eastern washington state
    18x36, Vinyl inground 24k
    Hayward 1 hp filter pump
    1 skimmer/2 returns
    24" sand filter, polaris 280 with booster pump.

  5. Back To Top    #5
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,347

    Re: very milky pool

    Since you passed the OCLT you can let the FC come back down to normal for your CYA. Going against normal recommendations, you can try a little clarifier. That sometimes helps in particular instances where the water hasn't cleared after several days of filtering. You could also try some DE in the filter if you already have a box of it. If I had the DE I'd try it first but I wouldn't buy a whole box if you don't normally use it.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  6. Back To Top    #6

    Join Date
    Dec 2009
    Location
    Central Massachusetts
    Posts
    2,690

    Re: very milky pool

    Quote Originally Posted by Bama Rambler
    Going against normal recommendations, you can try a little clarifier. That sometimes helps in particular instances where the water hasn't cleared after several days of filtering..


    Actaully, I was gonna suggest it too

    I've used it on occasion. There are 2 basic types. One is "all natural" and made out of chitin. The other is a man-made polymer. I've had better luck with the man made stuff. One note of caution:
    Don't overdose it!!!!

    Follow the amount on the bottle for your size of pool. It wont change anything right away, so its not going to be instant. Give it 24 hours to work. In this case more is not better.
    14,000 gallon IG, Vinyl. Hayward 3/4 hp superpump, Penatair IC40 SWCG, Pentair automation, Hayward sand filter, Aqua Comfort heat pump, Hayward 400k Lo-Nox LP heater.

  7. Back To Top    #7

    Join Date
    Mar 2009
    Location
    eastern washington state
    Posts
    275

    Re: very milky pool

    Cool, Thanks guy/gals I do have a box of DE so i will try it. If that does not work i will go get some clairifier...I used to use it before I changed over to the BBB.
    thanks for the advice...
    live in eastern washington state
    18x36, Vinyl inground 24k
    Hayward 1 hp filter pump
    1 skimmer/2 returns
    24" sand filter, polaris 280 with booster pump.

  8. Back To Top    #8

    Join Date
    Dec 2009
    Location
    Central Massachusetts
    Posts
    2,690

    Re: very milky pool

    Make sure you dont get floc. It can make a bigger mess. The clarifier should help.
    14,000 gallon IG, Vinyl. Hayward 3/4 hp superpump, Penatair IC40 SWCG, Pentair automation, Hayward sand filter, Aqua Comfort heat pump, Hayward 400k Lo-Nox LP heater.

  9. Back To Top    #9

    Join Date
    Dec 2009
    Location
    Central Massachusetts
    Posts
    2,690

    Re: very milky pool

    I just saw it and thought of it. How do you know what your pH is? At an FC of 20, that pH reading is going to be off. A high pH can cause some calcium to fall out of the water, and cloud it up a bit. Whats you CH?
    14,000 gallon IG, Vinyl. Hayward 3/4 hp superpump, Penatair IC40 SWCG, Pentair automation, Hayward sand filter, Aqua Comfort heat pump, Hayward 400k Lo-Nox LP heater.

  10. Back To Top    #10
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: very milky pool

    I second bk406's suggestion that calcium clouding could be an issue. Do you know what your CH level is?

    Another possibility is something wrong with the filter. This could be something simple like leaving your multi-port valve set to circulate instead of filter, or something more complicated like damage to the main valve or filter that allows debris to bypass the filter. A good way to investigate this kind of issue is to watch you filter pressure. It should be going up over time and the filter might well have needed cleaning/backwashing by now if it is working correctly.
    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

  11. Back To Top    #11

    Join Date
    Mar 2009
    Location
    eastern washington state
    Posts
    275

    Re: very milky pool

    your right the ph might be off because of the high FC. I have not checked the CH because i thought with a vinyl pool it was not that big of thing... I can tell you that we have very hard water in the house... And for the filter I have back washed it many times this year trying to get the dirt off the bottom of the pool. that was before i got smart and vacumed to waste. So I am sure its working because the pressure goes up and then i back wash it and it come back to around 12 psi..

    I will check the CH and let you know as soon as i can... I think the last time i checked it, It was like 675 but i will check it again.. thanks everyone
    I did put some DE in the skimmer today and it seems to be a bit better....
    live in eastern washington state
    18x36, Vinyl inground 24k
    Hayward 1 hp filter pump
    1 skimmer/2 returns
    24" sand filter, polaris 280 with booster pump.

  12. Back To Top    #12
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: very milky pool

    Low CH is just fine in a vinyl liner pool, but high CH is still a problem in more or less the same way it would be in any other pool.
    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

  13. Back To Top    #13

    Join Date
    Mar 2009
    Location
    eastern washington state
    Posts
    275

    Re: very milky pool

    I tested the CH its 230 so not to bad (I think)..
    it does look a bit better tonight then it did this morning but a long way to go to crystal clear...
    live in eastern washington state
    18x36, Vinyl inground 24k
    Hayward 1 hp filter pump
    1 skimmer/2 returns
    24" sand filter, polaris 280 with booster pump.

  14. Back To Top    #14
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: very milky pool

    With CH at 230 the milkiness is very unlikely to have anything to do with calcium clouding.

    Sand filters can be very slow at clearing the water sometimes. Have you tried adding a little DE so it will catch more of the small particles?
    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

  15. Back To Top    #15

    Join Date
    Mar 2009
    Location
    eastern washington state
    Posts
    275

    Re: very milky pool

    Jason i have added Some DE. Put it in yesterday. I am going to give it a few more days and if it dose not get better.. I am going to use a little bit of clarifier.. Its never taken this long to clear up... I kind of wondering about the performance of the sand filter.
    would it help if i pull the water off the bottom of the pool instead of using the the skimmer... right now i have both valves open...
    Thanks so much...
    live in eastern washington state
    18x36, Vinyl inground 24k
    Hayward 1 hp filter pump
    1 skimmer/2 returns
    24" sand filter, polaris 280 with booster pump.

  16. Back To Top    #16
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: very milky pool

    Drawing water from the bottom vs. the skimmer shouldn't affect this situation.

    Clarifier is kind of hit or miss. It might clean it all up very quickly, or more likely do nothing at all.

    Nearly all of the ways that the filter might be broken would cause the filter pressure to stay constant or go up very very slowly, instead of going up normally.
    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

  17. Back To Top    #17

    Join Date
    Mar 2011
    Location
    Grand Rapids, Michigan
    Posts
    274

    Re: very milky pool

    I'm just a newbie but last year I had a very cloudy pool also. Never found out for sure but I think it was mustard algae. In fact I was looking around TFP (before I was a member) looking for some answers. Pool store wasn't overly helpful in this case. I shocked the heck out it using bleach and put Sparkle Up in my cart filter and noticed a difference in a matter of hours. Not crystal clear mind you, but improving. I'm hoping that with help & advice from TFP I can avoid that mess this year. Right now I just hope my pool water thaws out by May!
    17,500 gal. ABG Doughboy Pool
    1/2 HP Pump/150 sq.ft. Cartridge Filter
    TF100 Test Kit And Speedstir

  18. Back To Top    #18

    Join Date
    Mar 2009
    Location
    eastern washington state
    Posts
    275

    Re: very milky pool

    Well i went and bought some clarifier and put in yesterday afternoon... The pool store said they would be very surprised if it did the trick... Well woke up to a clear blue pool this morning... Not sure what was going on put the clarifier WORKED..
    Thanks everyone for the Advice...
    live in eastern washington state
    18x36, Vinyl inground 24k
    Hayward 1 hp filter pump
    1 skimmer/2 returns
    24" sand filter, polaris 280 with booster pump.

  19. Back To Top    #19

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

    Re: very milky pool

    If the particulate matter is very fine and the filter doesn't filter down very low or if circulation is poor, then a pool can remain cloudy for a while. A sand filter has the worst filtering ability of all three types: sand, cartridge, DE. This can be improved by adding some DE to the sand filter, but as you found out you can also use a clarifier which also helps (sometimes).

    Whether a typical cationic polymer clarifier works or not depends on what it is trying to clarify. Clarifiers work really well sweeping up negatively charged particles, but they don't do as well with neutral particles and don't do anything at all with positively charged particles.
    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"

Posting Permissions

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