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Thread: New Construction Houston, TX

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    Join Date
    Sep 2012
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    Houston, TX
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    New Construction Houston, TX

    Hi everyone.... been lurking for a while. We are about a week past gunite and everything is going pretty well with the build but I do have a question.

    My PB has specified a Pentair DE filter to go with our salt water pool. I will post some pics later but the pool is a free form 36 ft long and varying between 16ft and 21ft wide with 3.5 ft shallow end and 6' 8" deep end (did not hit my desired 7' depth). We also have the PCC2000 in ground cleaning system.

    I want your expert opinions on DE and whether it is worth all the hassle or if catridge will work just as well. I know DE can filter out smaller particles than cartridge but is this really the case or is it only so when the filter media is new (filter capability degrades over days or weeks?)?

    Another question... any scientific testing regarding how often to water the gunite. We have been watering it twice per day.

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    Mod Squad Bama Rambler's Avatar
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    Re: New Construction Houston, TX

    welcome to TFP.

    Actually a cartridge can be more of a hassle more often than a DE filter. You can't backwash a cartridge so your only option when it needs cleaning is to tear it down and clean it. With a DE filter you can backwash it and just recharge it with DE and your back in business. You only have to tear it down about once a year. Of course if you oversize the cartridge you'll only have to clean it once or twice a year so it's not bad either.

    Twice a day for the first while sounds about right for watering the gunite.
    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

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    Houston, TX
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    Re: New Construction Houston, TX

    Thanks Dave.

    Another question. The pool has turned out to be about 4 inches shy of the 7ft depth that was agreed and my pool builder says he can add another inch to the water depth by adjusting the way the coping is installed. Not sure I want to mess with this as I am concerned about any other issues this might create down the road.

    We have a jumping platform that will be 30" above the water level at it's highest point.

    I will post some pics tonight

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    Re: New Construction Houston, TX

    If you are planning on intalling a laminar jet now of in the future they recommend to use a cartridge filter. They have small screens inside them that will get plugged off from DE material or sand. I added 2 laminars to my pool build and had to switch from DE to cartridge.
    20x42 free form gunite with 35' Lazy river
    Glow-in-the-dark floor tiles (highly recommend)
    5 pumps (Hayward)
    Hayward Cartridge filter
    12.5 ton Natural Rock Grotto
    1000 sq/ft Stamped concrete
    "Verde" color plaster
    Pentair LED Laminar jets x2 (awesome)
    Bleach Injection (coming soon)
    Outdoor HD Theater 9' x 16' Screen

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    In the Industry

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    Re: New Construction Houston, TX

    You will never notice an inch difference. It is really based upon the skimmer itself. Pool depth is usually measured from the center of the throat, so if he is not raising the skimmer adding more mud under the coping and raising the tile line will not really make a difference.
    There is the best of both worlds filter. It is a Pentair Quad DE. You can backwash if you like, or clean it like a cartridge filter.

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    Sep 2012
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    Houston, TX
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    Re: New Construction Houston, TX

    Thanks waterworx.. whatever happened with your build?.. never saw final pictures

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    Houston, TX
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    Re: New Construction Houston, TX

    Just-a-pb: Thanks!

    I have asked my PB about the quad DE... I know he specified a Pentair DE but not sure which one exactly

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    Sep 2012
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    Houston, TX
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    Re: New Construction Houston, TX

    I added some pics to the original post...

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