Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 17 of 17

Thread: Murky pool after rain

  1. Back To Top    #1

    Join Date
    Oct 2014
    Location
    Australia
    Posts
    32

    Murky pool after rain

    Hi.

    40,000 litre pebblecrete concrete pool, sand filtered, swg, was nice and clean...

    Then it poured down rain washing dirt and clay silt into the pool.

    So a project over winter is for me to work on the drainage around the gardens and pool.

    I have added salt to the pool,have got the chlorine levels to where they should be and the pool is now a blue colour again, but the water is cloudy.

    I have added about a litre of clarifier progressively and it seems to have helped a little but but not much.

    What should I try now?

    De in the filter? Floc and vac? More clarifier? Could I put a fine filter in the skimmer basket to help catch the particles?

    Cheers.

  2. Back To Top    #2
    pwrstrk's Avatar
    Join Date
    Aug 2012
    Location
    Elverson Pa.
    Posts
    4,758

    Murky pool after rain

    I wouldn't add anymore floc, clarifier or anything else of that nature to the water. It can in some cases make it worse. Let your filter do it's job.
    It sounds like you need some more filter time. At times sand filter's may take a little more time to filter out fine particles. You can help it by Adding DE To A Sand Filter.
    A skimmer sock over the basket may help also depending on what size the particles are. Could you post a full set of test results and what kit your using to make sure everything is ok on that end ?
    Do you have everything vac'd up ?
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

  3. Back To Top    #3

    Join Date
    Oct 2014
    Location
    Australia
    Posts
    32

    Re: Murky pool after rain

    Hi pwrstrk,

    Thanks for the help.

    Perhaps my expectations of how long the filter should take to clear the water are too high....

    I can only just see the bottom at the deep end, which is 1.8m deep. The filter has been running for 3 days, at 12 hours per day, so about 36 hours so far.

    Should I be expecting this to clear in a week? A month?

    I haven't vacuumed anything yet as I hadn't used floc, but I notice that there is some gunk settled to the bottom. How long should I wait to vac if the water body is still cloudy?

    Cheers.

  4. Back To Top    #4
    pwrstrk's Avatar
    Join Date
    Aug 2012
    Location
    Elverson Pa.
    Posts
    4,758

    Murky pool after rain

    Hi back at ya !
    It may take a week or a little more to totally clear. Can't say for sure. The DE can help with that.
    Test results ? Just to make sure everything is ok. What type of vac do you have ?
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

  5. Back To Top    #5

    Join Date
    Oct 2014
    Location
    Australia
    Posts
    32

    Re: Murky pool after rain

    Hi,

    I don't have my test results on hand...is there anything specific that could be contributing to the problem?

    So the DE in the filter trick helps? How is this different to letting the sand filter build up with dirt?

    Also, whether the DE makes the sand able to catch the smaller particles vs making the particles bigger via the clarifier - what is the difference?

  6. Back To Top    #6
    pwrstrk's Avatar
    Join Date
    Aug 2012
    Location
    Elverson Pa.
    Posts
    4,758

    Murky pool after rain

    Something that can contribute to the cloudiness is FC out of range for the CYA level, or other chemistry issues. That's why I asked for some accurate test results. Hard to say with out them though.
    The DE helps by the structure of the DE. It'll catch finer particles. You are correct that a slightly dirty sand filter will filter better. The DE just helps the sand filter out. You don't have to do this if don't want too. Just another avenue to take.
    As for the clarifier's we don't usually recommend using them. They can work in some cases and in some cases they can make things worse. As for the science behind it I don't have that answer. Somebody else could answer that. Sorry I can't give a better answer on that. Just going by what I have seen happen on the forum.
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

  7. Back To Top    #7

    Join Date
    Jan 2015
    Location
    NSW Central Coast AUSTRALIA
    Posts
    36

    Re: Murky pool after rain

    I've had similar, best way imo is don't touch the pool for a week, let it all settle out, then hand vac it. Cut your filter back to normal run times as well and it might take a few vacs to get it all, but eventually it will settle out. Not sure what your weather is like atm but it has been cold and rainy here for weeks so it is easy to leave the pool alone! Crazy for February, our hottest month of the year!
    7700 Gallon Bestway 22ft Vinyl, Zodiac Clearwater 170 SWG, Sand Filter, Hand Vacuum, Borates.

  8. Back To Top    #8

    Join Date
    Oct 2014
    Location
    Australia
    Posts
    32

    Re: Murky pool after rain

    Yeah that's right about Februrary!!! It hasn't been that hot up in Brizzy! Temps in the high 20's, rainy etc.

    FC is fine, there is plenty.

    Perhaps I'll give it until the weekend and see where it's at; I may need to vac some of the settlement out.

    The pool is otherwise safe to swim in correct? (FC is good).

    Cheers for the help from all posters above.

  9. Back To Top    #9
    pwrstrk's Avatar
    Join Date
    Aug 2012
    Location
    Elverson Pa.
    Posts
    4,758

    Re: Murky pool after rain

    As long as you can see the bottom of the pool you can swim. Safety reasons !
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

  10. Back To Top    #10
    Divin Dave's Avatar
    Join Date
    Oct 2013
    Location
    Longview, Texas
    Posts
    4,926

    Re: Murky pool after rain

    Hi bobfloyd,

    We cannot comment as to wheter your pool is safe to swim in or not without knowing your test results of FC and CYA. We base our recommendations and provide comments based upon reliable test results of the water chemistry and not assumptions. Assumptions will get you nowhere fast, except to the poor house and the hospital.

    Any pool is safe to swim in as long as the FC is sufficient to sanitize the pool, AND, the FC is not above the FC/CYA raio for shock level.

    The sanitizing effect of chlorine is depenendent on the CYA level.

    Here are the recommendations and FC/CYA chart for your reference.
    http://www.troublefreepool.com/conte...mmended-levels
    http://www.troublefreepool.com/conte...art-slam-shock



    Quote Originally Posted by bobfloyd View Post
    Yeah that's right about Februrary!!! It hasn't been that hot up in Brizzy! Temps in the high 20's, rainy etc.

    FC is fine, there is plenty.

    Perhaps I'll give it until the weekend and see where it's at; I may need to vac some of the settlement out.

    The pool is otherwise safe to swim in correct? (FC is good).

    Cheers for the help from all posters above.
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

  11. Back To Top    #11

    Join Date
    Jan 2015
    Location
    NSW Central Coast AUSTRALIA
    Posts
    36

    Re: Murky pool after rain

    Quote Originally Posted by bobfloyd View Post
    Yeah that's right about Februrary!!! It hasn't been that hot up in Brizzy! Temps in the high 20's, rainy etc.
    How'd you go with Cyclone Marcia last week, is that what the mud is from?
    7700 Gallon Bestway 22ft Vinyl, Zodiac Clearwater 170 SWG, Sand Filter, Hand Vacuum, Borates.

  12. Back To Top    #12

    Join Date
    Oct 2014
    Location
    Australia
    Posts
    32

    Re: Murky pool after rain

    Yep - Cyclone Marcia is responsible for making my pool murky!!!

    Everything else at home is fine, but boy did all that rain make a mess of our pool!

    Looking at it yesterday afternoon, it look like a layer of gunk is settling on the bottom, so, I'll try vacuuming it on Saturday morning.

    Can this gunk stain the bottom?

    Scott.

  13. Back To Top    #13
    pwrstrk's Avatar
    Join Date
    Aug 2012
    Location
    Elverson Pa.
    Posts
    4,758

    Re: Murky pool after rain

    I can't say it won't, but I wouldn't let it set there too long.
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

  14. Back To Top    #14

    Join Date
    Oct 2014
    Location
    Australia
    Posts
    32

    Re: Murky pool after rain

    Yeah, I'll try to get rid of it Saturday morning.

    Hopefully we can swim in it over the weekend.

    Based on my CYA levels, the FC is more than fine (slightly too high).

  15. Back To Top    #15

    Join Date
    Jan 2015
    Location
    NSW Central Coast AUSTRALIA
    Posts
    36

    Re: Murky pool after rain

    Quote Originally Posted by bobfloyd View Post
    Yep - Cyclone Marcia is responsible for making my pool murky!!!

    Everything else at home is fine, but boy did all that rain make a mess of our pool!

    Looking at it yesterday afternoon, it look like a layer of gunk is settling on the bottom, so, I'll try vacuuming it on Saturday morning.

    Can this gunk stain the bottom?

    Scott.
    Ah bummer, it was heading straight down here to us but luckily changed direction and headed out to sea. Yeah let it settle then vacuum and keep at it!
    7700 Gallon Bestway 22ft Vinyl, Zodiac Clearwater 170 SWG, Sand Filter, Hand Vacuum, Borates.

  16. Back To Top    #16

    Join Date
    Oct 2014
    Location
    Australia
    Posts
    32

    Re: Murky pool after rain

    I feel a little bit guilty complaining about the cyclone washing dirt into my pool whilst others have had the roof of their house ripped off etc....

  17. Back To Top    #17

    Join Date
    Jan 2015
    Location
    NSW Central Coast AUSTRALIA
    Posts
    36

    Re: Murky pool after rain

    Quote Originally Posted by bobfloyd View Post
    I feel a little bit guilty complaining about the cyclone washing dirt into my pool whilst others have had the roof of their house ripped off etc....
    Ah well, you know, first world problems are still serious ones haha but true, it did some damage to some property up there.
    7700 Gallon Bestway 22ft Vinyl, Zodiac Clearwater 170 SWG, Sand Filter, Hand Vacuum, Borates.

Posting Permissions

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