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Thread: 1st sand filter deep clean, Standpipe and laterals came up with multiport. HELP!

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    melbajr's Avatar
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    Question 1st sand filter deep clean, Standpipe and laterals came up with multiport. HELP!

    I unscrewed the multiport and lifted it off when I noticed that the Standpipe and laterals came up with it. Seems the standpipe was inserted approx. 5 inches into the multiport and snuggly fitted to it as well. Is it possible to prevent this from happening next time? Shorten pipe maybe?

    I ask because now I'm hoping there's a way to reinsert standpipe/laterals without removing the sand? If not, what would be the easiest way to remove and return the sand? Or should i just go ahead and replace it?

    The laterals were not all facing vent side up as I expected. Does it matter? I hadn't planned on removing these but since they came out anyway I just unscrewed the laterals and removed all of it.

    Also, upon inspection and cleaning I noticed salt in the laterals. Is this normal? I couldn't wash it out with the hose and it's stuck to the vented side but not the solid side of each lateral. It isn't a lot but i could grab some pipe cleaners. (the brown bit is decomposing leaf)
    IMG_0222.jpg
    Grecian 11,800 gal. IG vinyl, Pentair TA-60 sand filter, 1.5 hp Superflo, built in 2007, replaced vinyl & converted to Intellichlor IC-40 SWG in 2012 after we purchased home. TF-100 Testkit, SWG manufacturer recommends salt levels 2600-4500, ideal being 3400-3500. Polaris 180 vac.

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    Re: 1st sand filter deep clean, Standpipe and laterals came up with multiport. HELP!

    1. you will have to remove all of the sand. Sand is cheap so I would discard the old sand and replace it. I am surprized that it came out in one piece.
    2. Salt is soluble so I doubt that you would see salt crystals on the laterals. This could be small pieces of matter from the sand that came with the filter, or something in the area.
    20X40 30,000 gallon gunite pool

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    melbajr's Avatar
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    Re: 1st sand filter deep clean, Standpipe and laterals came up with multiport. HELP!

    "you will have to remove all of the sand"

    best way? Shop vac?

    thanks for helping!
    Grecian 11,800 gal. IG vinyl, Pentair TA-60 sand filter, 1.5 hp Superflo, built in 2007, replaced vinyl & converted to Intellichlor IC-40 SWG in 2012 after we purchased home. TF-100 Testkit, SWG manufacturer recommends salt levels 2600-4500, ideal being 3400-3500. Polaris 180 vac.

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    Re: 1st sand filter deep clean, Standpipe and laterals came up with multiport. HELP!

    Shop vac if it's dry. Garden trowel if it's wet.
    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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    1st sand filter deep clean, Standpipe and laterals came up with multiport. HELP!

    I wet dry vac'd my sand out when I changed it last year. But as stated, it will all have to come out. And make sure you use the proper type of sand.


    30x20 vinyl IG, Hayward SD60 with Pentair Dynamo 340219 2HP pump, Compupool CPSC24 SWG, Hayward H200FDN heater. APC automatic pool cover.
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    Re: 1st sand filter deep clean, Standpipe and laterals came up with multiport. HELP!

    Sounds like a vac is the way to go with a couple stops to empty it out.
    '70s IG Vinyl 32K gal, Lazy L, Hayward SuperPump 1.5hp 120V, S240 Sand Filter W/DE
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    Re: 1st sand filter deep clean, Standpipe and laterals came up with multiport. HELP!

    Thank you to all for the great advice!
    My sand is a bit damp but I'm gonna try our wet/dry vac before i resort to the trowel Scary thought!
    Gotta get busy!
    Grecian 11,800 gal. IG vinyl, Pentair TA-60 sand filter, 1.5 hp Superflo, built in 2007, replaced vinyl & converted to Intellichlor IC-40 SWG in 2012 after we purchased home. TF-100 Testkit, SWG manufacturer recommends salt levels 2600-4500, ideal being 3400-3500. Polaris 180 vac.

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    Re: 1st sand filter deep clean, Standpipe and laterals came up with multiport. HELP!

    One more Question
    "The laterals were not all facing vent side up as I expected. Does it matter?"
    Grecian 11,800 gal. IG vinyl, Pentair TA-60 sand filter, 1.5 hp Superflo, built in 2007, replaced vinyl & converted to Intellichlor IC-40 SWG in 2012 after we purchased home. TF-100 Testkit, SWG manufacturer recommends salt levels 2600-4500, ideal being 3400-3500. Polaris 180 vac.

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    Re: 1st sand filter deep clean, Standpipe and laterals came up with multiport. HELP!

    This one is slightly out of my area of knowledge, but I'm going to guess it doesn't matter. All sides of the lateral are submerged and under the same pressure.

    Plus, since they're threaded (did I read that correctly?), you may not get a choice. They snug up tight where they snug up tight, and the laterals will have to just stay that way.
    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

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    Re: 1st sand filter deep clean, Standpipe and laterals came up with multiport. HELP!

    Quote Originally Posted by Smykowski View Post
    ...I'm going to guess it doesn't matter. All sides...are submerged and under the same pressure.

    ...you may not get a choice. They snug up tight where they snug up tight...
    I was thinking that if the vents were up it would help since gravity pulls the water down. It sounds like you're saying that the pressure in the tank negates gravity, is that right?

    Snugging up is probably why it was like that anyway but if the direction mattered I have some self-fusing waterproof tape.

    I have learned so much from this website and you, thank you!
    Grecian 11,800 gal. IG vinyl, Pentair TA-60 sand filter, 1.5 hp Superflo, built in 2007, replaced vinyl & converted to Intellichlor IC-40 SWG in 2012 after we purchased home. TF-100 Testkit, SWG manufacturer recommends salt levels 2600-4500, ideal being 3400-3500. Polaris 180 vac.

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    Re: 1st sand filter deep clean, Standpipe and laterals came up with multiport. HELP!

    The tank is hydrostatically full and under pressure, so it doesn't rely on gravity to flow. The water is forced down through the sand and follows the path of least resistance through the laterals and back to the pool. I would think the slots should be down so sand isn't laying directly on them, but I don't really know if it matters.
    30K gallon IG vinyl. 1.5HP 2-speed Waterway Mustang pump. 600 lb sand filter. Polaris 280. Circupool SI-60+. TF-100

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    melbajr's Avatar
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    Re: 1st sand filter deep clean, Standpipe and laterals came up with multiport. HELP!

    Thanks for that!

    I guess I just need to stop sweating the small stuff
    Grecian 11,800 gal. IG vinyl, Pentair TA-60 sand filter, 1.5 hp Superflo, built in 2007, replaced vinyl & converted to Intellichlor IC-40 SWG in 2012 after we purchased home. TF-100 Testkit, SWG manufacturer recommends salt levels 2600-4500, ideal being 3400-3500. Polaris 180 vac.

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