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Thread: Why Sand Filtration?

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    Mandolina's Avatar
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    Why Sand Filtration?

    Why do so many recommend sand filter for AG pools? From what I read one has to backwash frequently and there has to be someplace for the backwash to go. I also read that the sand filter is the most porous and allows bigger particles to pass through causing cloudy water. What am I missing here?
    16' x 48" 5000 gal. Intex Ultra Frame AG Pool, Los Angeles, CA
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    mrcarcrazy's Avatar
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    Re: Why Sand Filtration?

    low maintenance. Sand filters are simple and they filter water enough that most people (IMO) cannot see a difference in the water when a "superior" filter is used. Some will claim they can, but most of them just spent money on a "superior filter"....so they may be biased.

    Anyway, Low maintenance.
    IG gunite/plaster pool/spa Started 1/17/14, Plastered 5/16/14
    Size: 12'-21'x39' free form, depth ranging from 4' to 7, attached 6 person spa with spillover.
    Equipment: Whisperflo 2hp pump, Pentair 30" sand filter, Pentair Mastertemp 400k BTU heater, 1hp Whisperflo for waterfalls, and a blower for spa floor

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    Mod Squad jblizzle's Avatar
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    Re: Why Sand Filtration?

    Ease of use is likely the reason. No having to open up the filter to clean cartridges and no backwashing and handling of DE.

    In reality, if the filters are properly sized, any of them require fairly infrequent cleaning if you maintain the proper chemistry. And any of them can keep your pool sparkling clean.

    Have you read this:
    http://www.troublefreepool.com/conte...ter-comparison
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    Mod Squad JohnT's Avatar
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    Re: Why Sand Filtration?

    Backwashing is such a trivial thing that even if you had to do it daily it would be no problem. I generally only backwash mine a few times a year. 10 whole minutes a year standing there flipping a lever a couple of times. No filter is easier to maintain. I can read the brand name on my pool drain while standing on my diving board. How much clearer do you want the water?

    When you backwash a DE filter, you have to replace the DE. Cleaning cartridges is a much more lengthy process than either.
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    Isaac-1's Avatar
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    Re: Why Sand Filtration?

    Part of it is that most cartridge filters sold to the smaller above ground pool market are so undersized to almost be a joke. Sand filters are relatively cheap and easy to operate, although backwashing can be an issue for those with draining or water restriction issues.

    Ike
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
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    JasonLion's Avatar
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    Re: Why Sand Filtration?

    The largest factor, which no one else seems to have mentioned, is that when you are talking above ground pool, you are usually talking Intex. The tiny cartridge filters that come with their pools are just terrible. No one with an Intex pool should consider using that filter. The most affordable upgrade is an Intex sand filter, which will actually filter the water. There are plenty of other filter options, but all of the other ones worth considering are significantly more expensive than an Intex sand filter, leaving it as the only practical choice for people on a tight budget.

    If your budget is larger it is a whole different story.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: Why Sand Filtration?

    I love cartridge filters... The reason? They are not heavy and they don't take up very much space....I have a tiny yard.... They are awesome at keeping my water crystal clear and I don't have to buy sand I can get filters delivered to my door.... It works for me, filter choice is a personal thing.... But they all work....

    My avatar pic, the water was being filtered by the crappiest little cartridge filter from bestway, but I had really good filter cartridges, they were cheaper bought in bulk and throw away, but very effective... I only ran my pump for a total of 8-9 hours a day, but only 2-3 hours at a time with an hour break... The pool was sparkly for 4 months... I will say I was glad to upgrade, but it was doing its job and it cost me $20 for filters so a win here...
    Intex Rectangle 18 x 9 x 52', 4544 gallon (18000 litres), 0.75 hp pool pump, 100 sqft Zodiac Titan Cartridge Filter - 40mm, Stenner Peristaltic Pump chlorine injection system, Intex Over The Wall Skimmer, Intex Fittings with 40mm plumbing Lil Patch Of Heaven. Build/Construction http://www.troublefreepool.com/threa...lice-of-heaven

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    Re: Why Sand Filtration?

    Laceygirl,
    You buy sand once and then don't replace it for decades.
    26,000 gal 18x36' IG Vinyl Pool - Hayward S244T Sand filter - Hayward Tri-star 2-speed 1.5HP pump - Goldline Aqua Plus SWCG and Controller with Tcell-15 - Aquacomfort 125K BTU Heatpump - Hayward Color Comfort 4.0 LED - Zodiac MX8 suction cleaner - TF100 test kit
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    Re: Why Sand Filtration?

    I'd get too lazy with a sand filter.... lol I like changing cartridges, I don't have to as often with the Hayward, I'm out there testing the pool anyway, what's another 2 minutes??
    Intex Rectangle 18 x 9 x 52', 4544 gallon (18000 litres), 0.75 hp pool pump, 100 sqft Zodiac Titan Cartridge Filter - 40mm, Stenner Peristaltic Pump chlorine injection system, Intex Over The Wall Skimmer, Intex Fittings with 40mm plumbing Lil Patch Of Heaven. Build/Construction http://www.troublefreepool.com/threa...lice-of-heaven

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    pwrstrk's Avatar
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    Re: Why Sand Filtration?

    Quote Originally Posted by MassNerd View Post
    Laceygirl,
    You buy sand once and then don't replace it for decades.
    You should never have to replace sand in a sand filter. It doesn't go bad or wear out.
    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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