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Thread: Hello everyone!! Several Questions.. small particles and stains

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    Join Date
    Nov 2015
    Natchitoches, LA

    Hello everyone!! Several Questions.. small particles and stains

    Summer is upon us! I know we are all excited to enjoy these pools. Here are my questions: I'm having a problem with my sand filter not filtering out the fine particles. I'd like to hear from someone who has added DE to their sand filter to help with this. What does your filter pressure normally run? What do you raise it to with DE? Do you add DE with every backwash?

    Stains: My steps are very discolored and dingy looking. How do I correct this? Also there are several stains on the bottom of the pool that look like rust places. How do I get rid of them?

    Thanks so much to all of you!!!!
    16 x 32 inground 23000-gallon, 4 ft shallow going to 8 ft deep, concrete surround, Hayward Pro Series High Rate Sand Filter (Side Valve) with new valve and sand, New Hayward Super Pump, Inline chlorine tab feeder (not using) TF-100xl test kit

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    Pool Tool's Avatar
    Join Date
    May 2014
    Western Chicago Area, IL

    Re: Hello everyone!! Several Questions.. small particles and stains

    How to Add DE to a sand Filter: Pool School - Add DE to a Sand Filter

    You want to raise the clean pressure of your filter by 1 psi. It takes only a little DE. But be careful, it is very efficient. My pressure almost always skyrockets within hours of adding. Good that it works, but you need to be around to backwash as necessary.

    Magic Erasers worked wonders on my steps. Just stretch your arm before starting, ha.
    16' x 32' (21100 gal), vinyl, 1.5 hp Hayward SuperPump,
    Tagelus TA60/60D Sand Filter, Raypak 399K Digital Heater, TF-100

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    Mod Squad YippeeSkippy's Avatar
    Join Date
    Jan 2012
    'burbs of Augusta, Georgia

    Re: Hello everyone!! Several Questions.. small particles and stains

    You need to determine if your stains are organic or metal. Take a chlorine puck and place it on the stain for a few min. Does it lift it? If not, take some Vitamin C tablets and rub it on the stain. If that lifts the stain it is a metal problem.

    As to the DE, when I've used it it just adds a bit of extra sparkle to the water. But you might be having a filteration problem and first need to clean your sand filter out. You do NOT need to change the sand but it benefits from a bit of cleaning and checking for any tunneling that is allowing the schmutz to pass thru the filter un-caught.

    Deep Cleaning a Sand Filter

    I backwash in to a dried up creek bed, so I don't worry about the DE.
    Maddie :) 12K Fiberglass IG, Infinity 4000 automatic cover, SWCG, Hayward Sand Filter, Hayward 1.5 Pump, Doheny Discovery Robot, Savi Melody LED pool lights, outdoor speakers and other assorted doo-dads. Sundance Altamar Hot Tub.
    Our pool build--> Our Pool Solved Our Sloping Yard Skippy's Cheap Pool Cooler -->Skippy's New Fountain

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