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Thread: surface dirt

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    surface dirt

    hi all,

    i am new at taking care of my pool. its been three months and everything is going fine so far. ive been keeping my levels somewhat balanced and frequently monitoring. everyday, i get dirt or some weird slimy surface stuff. attached is picture. do you guys get this frequently? I've been using the Kreepy Krauly 5-6 days out of the week, and 1-2 days without (just skimmer basket).

    Any methods to improve look of the surface? Overall the water is clear, but have that surface dirt that is annoying me.

    Recent pool test:

    FC 2.2
    CC 0
    PH 7.8 (new pool -- I keep adding MA)
    TA 100
    CH 350
    CYA 50
    Pool Specs: 26K, IG, Plaster, Hayward 1HP Superpump, Hayward ProGrid DE 6020

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    Re: surface dirt

    Pool Specs: 26K, IG, Plaster, Hayward 1HP Superpump, Hayward ProGrid DE 6020

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    Mod Squad jblizzle's Avatar
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    Re: surface dirt

    Looks like it may be dust or pollen on the surface?

    The current issue you should be most concerned with is you do not have enough chlorine in the water. For a CYA of 50ppm, you should NEVER let the FC get below 4ppm and should be targeting 6-7ppm every day. See the FC/CYA Chart
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    Mod Squad woodyp's Avatar
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    Re: surface dirt

    Try just using the skimmer itself more and maybe stretch some pantyhose/knee highs over the basket to see what you catch. Pollen is best guess.
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    Re: surface dirt

    Your FC is very low for CYA 50. I can't tell from the pics what you have, but that needs to come up, or you'll be in for some real trouble. Check the FC/cya chart in pool school and use it to determine the correct FC level.
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    pwrstrk's Avatar
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    surface dirt

    After you get your FC in range, try using skimmer socks or knee highs over your skimmer basket. They'll catch that stuff.

    Woody beat me to it!!
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    Re: surface dirt

    Quote Originally Posted by jblizzle View Post
    Looks like it may be dust or pollen on the surface?

    The current issue you should be most concerned with is you do not have enough chlorine in the water. For a CYA of 50ppm, you should NEVER let the FC get below 4ppm and should be targeting 6-7ppm every day. See the FC/CYA Chart

    Thanks. Is there ever a time when you can use less chlorine for my situation (i.e. i've heard of less target levels, and it still appears to be ok)? I haven't noticed any algae yet, but my target was a level of 4.
    Pool Specs: 26K, IG, Plaster, Hayward 1HP Superpump, Hayward ProGrid DE 6020

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    Re: surface dirt

    Quote Originally Posted by Mirage21 View Post
    Thanks. Is there ever a time when you can use less chlorine for my situation (i.e. i've heard of less target levels, and it still appears to be ok)? I haven't noticed any algae yet, but my target was a level of 4.
    I'm not sure what you mean by the above question.

    If your min is 4, you need to be targeting 6 or 7. Normal FC consumption will drop the FC by 1-2 per day. The goal is that by the time you do the next dose, you're still at 4 or above.
    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
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    Mod Squad jblizzle's Avatar
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    Re: surface dirt

    Quote Originally Posted by Mirage21 View Post
    Is there ever a time when you can use less chlorine for my situation (i.e. i've heard of less target levels, and it still appears to be ok)? I haven't noticed any algae yet, but my target was a level of 4.
    Sure, if you feel lucky.
    If the stars align for you, then you may avoid algae with lower FC levels. If you want to guarantee it, then follow our recommendations.

    - - - Updated - - -

    How are you chlorinating your pool?
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    Re: surface dirt

    Quote Originally Posted by jblizzle View Post
    Sure, if you feel lucky.
    If the stars align for you, then you may avoid algae with lower FC levels. If you want to guarantee it, then follow our recommendations.

    - - - Updated - - -

    How are you chlorinating your pool?
    Right now with liquid bleach. I took out the trichlor tablets because i think my CYA levels are fine.

    - - - Updated - - -

    Quote Originally Posted by Smykowski View Post
    I'm not sure what you mean by the above question.

    If your min is 4, you need to be targeting 6 or 7. Normal FC consumption will drop the FC by 1-2 per day. The goal is that by the time you do the next dose, you're still at 4 or above.

    Ok, it's going to be 1 full gallon of bleach to bring it up. Time to dump away!
    Pool Specs: 26K, IG, Plaster, Hayward 1HP Superpump, Hayward ProGrid DE 6020

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    Mod Squad jblizzle's Avatar
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    Re: surface dirt

    Just wanted to make sure you had stopped using at trichlor or dichlor since your CYA is already on the high end of the recommended range.
    Jason, TFP Moderator
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    Re: surface dirt

    Those recommends lower levels do not take Cya into account. This is one place where we differ.
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    Re: surface dirt

    The only time I see huge amounts of stuff clumping on the surface is after a prolonged barbeque session on a windy day. Your upwind neighbors don't happen to do a whole lot of grilling do they? Or for that matter, spray painting or something?
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    Re: surface dirt

    Quote Originally Posted by Richard320 View Post
    The only time I see huge amounts of stuff clumping on the surface is after a prolonged barbeque session on a windy day. Your upwind neighbors don't happen to do a whole lot of grilling do they? Or for that matter, spray painting or something?
    No. I mostly get their leaves as I have no trees. It has been a little windy, but i'm just curious if it's all the surrounding dirt in my backyard. I'll have to cover it up and see.
    I just wanted to post to see if this is something normal (i.e. dirt). I'll try sock/skimmer to see if it gets any better.

    Otherwise, i might do a solar cover.
    Pool Specs: 26K, IG, Plaster, Hayward 1HP Superpump, Hayward ProGrid DE 6020

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    Re: surface dirt

    I use the knee high over the skimmer basket all the time. It grabs a lot of junk that otherwise would go to the filter.
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    Re: surface dirt

    I was able to resolve this proble after some experimenting. I decreased the automatic pool vacuum to once a week now and changed my return jet settings to better circulate the water to the filter. Thanks all.

    Pool Specs: 26K, IG, Plaster, Hayward 1HP Superpump, Hayward ProGrid DE 6020

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