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Thread: DE, sand or cartridge?

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    tookiesmom07's Avatar
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    DE, sand or cartridge?

    I have been studying Hydraulics 101. I noticed that a catridge filter is good for a SWCG. But sand filter is good for winterazation. But a DE is good for really clear water. So, I was interested in a DE filter but I would like to go saltwater. It will also have to be put away for winter. Am I just getting to technical in my head and over thinking? The DE with saltwater will work fine right? Thanks!
    Intex Ultra-Frame 26x52 AGP (14,650 gal.)
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    mas985's Avatar
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    Re: DE, sand or cartridge?

    Yes DE will work fine with a SWG. The issue is when you backwash, you will lose salt which will then need to be replaced. But it isn't as much as what a sand filter would be. But if you close a pool and open to an algae swamp, then I would avoid a cartridge unless you can put in a bypass.
    Mark
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    Mod Squad JVTrain's Avatar
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    Re: DE, sand or cartridge?

    Whatever you choose fit filtration will be fine. Just a matter of how fine. Is water really expensive? Sand wastes the most water and also doesn't filter quite as fine. DE has great filtration, wastes less water but you have to buy and handle DE more. Cartridges waste the least water and filter very well but more manual cleaning. I like my sand, manual chlorination for now but considering SWG in the future.

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    Mod Squad jblizzle's Avatar
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    Re: DE, sand or cartridge?

    If you size the DE filter large enough, you will not have to backwash very often and will thus no lose salt.
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    Mod Squad JVTrain's Avatar
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    Re: DE, sand or cartridge?

    Quote Originally Posted by mas985 View Post
    Yes DE will work fine with a SWG. The issue is when you backwash, you will lose salt which will then need to be replaced. But it isn't as much as what a sand filter would be. But if you close a pool and open to an algae swamp, then I would avoid a cartridge unless you can put in a bypass.
    Good point about salt (and CYA) with a sand. Sand will change the ppm levels of those more than other options.

    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

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