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Thread: I hate DE filters

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    I hate DE filters

    Actually, to be more precise, I hate backwashing, which the DE filter necessitates. Come to think of it, it would be even more precise to say that I hate being on a budjet, which causes me anxiety when I pour chemicals = money down the drain. So I guess the root of my problem is money. The lack of it. I need more money. With more money I could skip-to-the-lou-da-day down the street, strewing CYA granules all along the path with no worry at all.

    Either that, or a cart filter...
    20K gal IG plaster pool, Manually chlorinated with 6% bleach, 1.5 HP Sta-Rite Dura-Glas II pump, Pentair FNS Plus 48 DE filter, Polaris 280

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    Re: I hate DE filters

    think I read somewhere... Thoreau... Emerson maybe?

    The cart life...is the good life...

    words to live by!
    20K gal IG plaster pool, Manually chlorinated with 6% bleach, 1.5 HP Sta-Rite Dura-Glas II pump, Pentair FNS Plus 48 DE filter, Polaris 280

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    Ohm_Boy's Avatar
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    Re: I hate DE filters

    The cart life...is the good life...
    'til you have to buy a new set of carts.
    [center:1kpalu48]Helpful Links: Pool School | CYA/Chlorine Chart | Pool Calculator[/center:1kpalu48]

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    Re: I hate DE filters

    No, I got it! It was in a song! Ray Price & Willie Nelson... love that tune...
    20K gal IG plaster pool, Manually chlorinated with 6% bleach, 1.5 HP Sta-Rite Dura-Glas II pump, Pentair FNS Plus 48 DE filter, Polaris 280

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    Re: I hate DE filters

    Beez,

    You are w-a-a-y too funny!! I hear ya', though.

    All three types of filters can be PITA's one way or another and all three types can be blessings, too.

    Of course, money is, in fact, the source of ALL our pool problems.

    Given enough money, Butterfly or Ohm_boy would probably come to our houses and fix our pools while we all enjoyed "Land Shark" beer and listened to Jimmy Buffet.

    Please let me know if you get enough (money)....I would like to be your new best friend.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: I hate DE filters

    Soon as I save up for another patch on this inner tube, I will be throwing a BYOCYA party! And you are invited!
    20K gal IG plaster pool, Manually chlorinated with 6% bleach, 1.5 HP Sta-Rite Dura-Glas II pump, Pentair FNS Plus 48 DE filter, Polaris 280

  7. Back To Top    #7

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    Re: I hate DE filters

    Love my cart filter.

    You know you want a nice new cart filter.

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    Re: I hate DE filters

    I seem to recall someone who planned a grand experiment with his de filter...something about not opening up the filter to clean it.
    When I open up my de filter to clean it, I lose only the water in the filter. A few minutes with a nozzle sprayer on a garden hose and the grids are ready to recharge.
    TFP Moderator
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    Vogue 21' round AG, Pentair 1 hp 2 speed pump, 36 sq ft DE filter, Hayward S180T 150# sand filter, Houston, Texas
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    Re: I hate DE filters

    Quote Originally Posted by zea3
    I seem to recall someone who planned a grand experiment with his de filter...something about not opening up the filter to clean it.
    When I open up my de filter to clean it, I lose only the water in the filter. A few minutes with a nozzle sprayer on a garden hose and the grids are ready to recharge.
    That experiment continues. Happily, I can report...

    So Zea, are you saying you never backwash? You breakdown instead at every backwash interval? I would have no problem with that if it was a cart, but a DE flter? Never...
    20K gal IG plaster pool, Manually chlorinated with 6% bleach, 1.5 HP Sta-Rite Dura-Glas II pump, Pentair FNS Plus 48 DE filter, Polaris 280

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    Re: I hate DE filters

    Quote Originally Posted by 257WbyMag
    Love my cart filter.

    You know you want a nice new cart filter.
    This is what I am saying...
    20K gal IG plaster pool, Manually chlorinated with 6% bleach, 1.5 HP Sta-Rite Dura-Glas II pump, Pentair FNS Plus 48 DE filter, Polaris 280

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    Re: I hate DE filters

    Ok, I finally had to join this rant. I am certainly biased in this area but I just don't see the attraction to a DE filter. Sure it may clean better but from all the folks on this forum who have had issues with DE filters caking and the constant cleaning of grids, it just doesn't seem like it would end up being less maintenance. I clean my cart once a year and it takes less than an hour. I just wonder what the yearly maintenance time is on a DE filter. It would be the same PIA as a cartridge for algae cleanups so I give that one to a sand filter and for anyone that has to close a pool, I would probably recommend a sand filter.

    Plus one often overlooked aspect of a cartridge filter is that it is far more efficient than either a DE or a sand filter. I recently added this table to the hydraulics 101 sticky:

    Filter Head Loss Table
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Re: I hate DE filters

    This is interesting. I have only ever had 2 DE filters, so I do not know any different. It is certainly a pain to have to break everything down on occasion. I could currently go get an almost new Sand filter from my Father in law for free if I wanted to move it ... figured my current DE is newish too and working find so why switch.

    As a note my FIL switched from a cartridge to the sand since it clogged so often. So that was my only "experience" with a cartridge. Although now thinking about it, I am sure his pool was not balanced so algae was likely and it sure looked tiny so I think it may have been undersized.

    Obviously I never close my pool, since I am redoing the pad plumbing anyway ... now got me thinking if I should switch in the sand filter instead ... or just wait for my current filter to die and then research these cartridges you are all talking about.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: I hate DE filters

    Quote Originally Posted by mas985
    Ok, I finally had to join this rant. I am certainly biased in this area but I just don't see the attraction to a DE filter.
    Thanks Mark! Indeed, a rant it is. It is nice to know that my intuition can be backed up by hard evidence. Hopefully, by the time these grids expire I will be in a position financially to ditch the DE and move to the sunny side of the steet!
    20K gal IG plaster pool, Manually chlorinated with 6% bleach, 1.5 HP Sta-Rite Dura-Glas II pump, Pentair FNS Plus 48 DE filter, Polaris 280

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    Re: I hate DE filters

    Quote Originally Posted by Beez
    Quote Originally Posted by zea3
    I seem to recall someone who planned a grand experiment with his de filter...something about not opening up the filter to clean it.
    When I open up my de filter to clean it, I lose only the water in the filter. A few minutes with a nozzle sprayer on a garden hose and the grids are ready to recharge.
    That experiment continues. Happily, I can report...

    So Zea, are you saying you never backwash? You breakdown instead at every backwash interval? I would have no problem with that if it was a cart, but a DE flter? Never...
    I should mention that my reasoning is based on the fact that my backwash/waste line from the filter was plumbed to sewer line when I inherited it.

    If my choices were either backwash to the ground, or breakdown/hose off, I'm sure I would choose your method.
    20K gal IG plaster pool, Manually chlorinated with 6% bleach, 1.5 HP Sta-Rite Dura-Glas II pump, Pentair FNS Plus 48 DE filter, Polaris 280

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    Re: I hate DE filters

    I guess everybody loves what they choose. Maybe it's because of my screen enclosure - I back wash my DE filter between every 3-6 months (my pressure never goes up more than a few psi or so, but I notice the flow drop to the waterfalls); but clean it yearly as zea3 describes. I don't remove the grids either, just open the bottom drain and rinse the grids. Back washing takes like 10 minutes; removing the cover and hosing it takes like 20. I guess I just don't see it as all that much of a chore...
    18k gal inground, everbrite finish, 505 sq ft; 1.5 hp two speed whisperflow; rheem 5100ti 100k btu heat pump; 3 sheer descent falls; DE filter; swg (cell out and using trichlor for now)

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    Re: I hate DE filters

    I'm with no-mas. I don't see washing off the grids in my Quad-DE as being any harder than washing off cartridges. And so far I've only cleaned them twice int he year since I got the filter (not counting some initial setup issues with my LQ when running low speed filtration and I took the filter apart a few times). Maybe a traditional DE filter is a different experience I can't say as I never opened the one I had before I got the Quad.
    15,600 Gallon, 16' x 32' In-Ground Vinyl Pool
    Pentair VS 3050 pump, Quad DE 60 filter and SunTouch controller
    8 gallon Liquidator, Aquatherm EcoSun Solar Panels, 2 wheel ThePoolCleaner

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    Re: I hate DE filters

    My pool builder wont even consider a DE filter. When he finds a bad one on a service call, he junks it and replaces with a cart or sand.
    14,000 gallon IG, Vinyl. Hayward 3/4 hp superpump, Penatair IC40 SWCG, Pentair automation, Hayward sand filter, Aqua Comfort heat pump, Hayward 400k Lo-Nox LP heater.

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    Mod Squad jblizzle's Avatar
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    Re: I hate DE filters

    Quote Originally Posted by carlscan26
    I'm with no-mas. I don't see washing off the grids in my Quad-DE as being any harder than washing off cartridges. And so far I've only cleaned them twice int he year since I got the filter (not counting some initial setup issues with my LQ when running low speed filtration and I took the filter apart a few times). Maybe a traditional DE filter is a different experience I can't say as I never opened the one I had before I got the Quad.
    I was not sure what the Quad-DE filters were ... after a Google search it basically looks like a cartridge filter with DE added. Looks like it would be much less hassle to take apart than the traditional DE filters.

    I may have to try hosing them off with just the top off. To date I have pulled them out and actually taken the 8 grids apart for thorough cleaning and to replace the grids ... not much fun getting everything lined back up (especially when some of the old grids were cracked).
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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  19. Back To Top    #19

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    Re: I hate DE filters

    Quote Originally Posted by jblauert
    I was not sure what the Quad-DE filters were ... after a Google search it basically looks like a cartridge filter with DE added. Looks like it would be much less hassle to take apart than the traditional DE filters.
    While they look like normal cartridge filters they're actually made of different stuff but yes it's a similar design idea. There are actually three ways to clean a QUAD and the ease of cleaning is the big selling point IMO:

    1. Traditional backwashing,

    2. Pull out the cartridge assembly and hose off (super easy, the whole thing lifts up easily and reseats easily),

    3. Open the drain in the bottom of the filter and wash off the filters in place. I don't do this as my filter is right between my pump and my SunTouch unit, and you would have to have 360 degree access to get the backs of the cartridges...I guess you could rotate the assembly but at that point you may as well pull them out because pulling out the cartridges is super easy. I do always open the drain and wash out the bottom of the filter as some DE and dirt accumulates there.
    15,600 Gallon, 16' x 32' In-Ground Vinyl Pool
    Pentair VS 3050 pump, Quad DE 60 filter and SunTouch controller
    8 gallon Liquidator, Aquatherm EcoSun Solar Panels, 2 wheel ThePoolCleaner

  20. Back To Top    #20

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    Re: I hate DE filters

    Just to give some context to my rant before it gets out of hand. It was not intended as an arbitrary DE bashing, nor as a forum for the yearly debate on filter types. Fun as that may be!

    It was and remains simply a rant.

    I waited too long to get things going this Spring, and let the pool go green. My bad. This is an important point in my annoyance with my filter, expressed in this thread.

    You see, my normal method is to thoroughly backwash after the Fall deluge & clean up so that the filter will be ready for Spring, because there is the known Spring deluge & clean up...after which, another backwash is required! The green pool threw a monkey wrench into my plans, because the Spring deluge is not finished yet.

    So here is my quandary which prompted Sunday's outburst: 1.) The filter needs to be backwashed because it just cleaned up a green pool. However, 2.) the Spring deluge is not finished, so typically I would backwash again before Summer swimming. 3.) The weather is unseasonably warm, so the pool requires chlorine, which also means it needs CYA!!!

    You see where I'm going with this. I need to add CYA which is not super cheap, after which I am going to have to turn right around and flush a good portion of it down the drain, not once, but most likely TWICE! Very annoying... And it doesn't help that I really don't care much for handling DE to start with.

    So some of you are right: My rant is certainly biased against DE & toward cart. Others of you may be right by suggesting I'm making my own problems by insisting on backwashing instead of breakdown/cleaning. Did I mention I don't care for handling DE? IMO it is nasty shizzz that has its proper place down a drain.

    And lastly, as I stated at the very top of the thread, if I wasn't flat broke, I wouldn't think twice about throwing CYA willy nilly all around the pool. Again, my bad. But it annoys a brutha don't you see?

    20K gal IG plaster pool, Manually chlorinated with 6% bleach, 1.5 HP Sta-Rite Dura-Glas II pump, Pentair FNS Plus 48 DE filter, Polaris 280

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