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Thread: This pool filter cannot be backwashed?

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    This pool filter cannot be backwashed?

    Hi All,

    I recently noticed the filter pressure is over 20 PSI.
    So I guess it's time to clean the filter.
    However, as in the attached picture, I can't find any valve on it so that I can do a backwash.
    So to clean it I will have to manually open it up?
    If that is the case, how much does it cost to hire someone to clean it for me?

    Thanks,
    Bo2015-04-04 11.57.41.jpg

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    Mod Squad jblizzle's Avatar
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    Re: This pool filter cannot be backwashed?

    If it is a cartridge filter, they do not have backwash valves.
    Jason, TFP Moderator
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    Re: This pool filter cannot be backwashed?

    the best advice I can offer on pricing is to call 3 places in your area and get quotes from them. A price from my location will be nothing close to what a price will be in your area
    Unknown make 18' above ground (bought used in 1999) Sparco sand filter. Hayward 100,000 BTu heater. 2 speed pump

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    Re: This pool filter cannot be backwashed?

    I understand you were asking how much to hire someone but even if you choose not to do it yourself seeing how it's done might be helpful.

    Link to how to videos: https://www.google.com/#q=youtube+cl...e+pool+filters
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    Re: This pool filter cannot be backwashed?

    Thanks, they are really helpful.

    - - - Updated - - -

    Quote Originally Posted by danpik View Post
    the best advice I can offer on pricing is to call 3 places in your area and get quotes from them. A price from my location will be nothing close to what a price will be in your area
    That's a good idea.

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    Re: This pool filter cannot be backwashed?

    Quote Originally Posted by jblizzle View Post
    If it is a cartridge filter, they do not have backwash valves.
    The manual left by the previous owner is for "Pro-Grid Vertical Grid D.E. Filter Series".
    There is a tag on the top of the filter, which is attached. I can see "DE2420MRZ1" at the bottom of the tag.
    I googled "Hayward DE2420", it seems to be a DE filter

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    JasonLion's Avatar
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    Re: This pool filter cannot be backwashed?

    DE filters are really intended to have a multi-position main valve, which appears to be missing in your system. See for example this picture.

    A main valve would allow you to backwash the filter. It is possible to open up the filter and clean it out, which should probably be done about once a year, but is quite a bit more work than backwashing for more routine cleanings.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: This pool filter cannot be backwashed?

    Your filter should have a rotary valve or a push pull valve on it. Seems someone just hard plumbed it directly to the pump
    Attached Images Attached Images
    '70s IG Vinyl 32K gal, Lazy L, Hayward SuperPump 1.5hp 120V, S240 Sand Filter W/DE
    Solar Blanket, Well Water, Borax Added, TF-100 tester. ? too cold
    1979, 275gal Conway Emerald Spa P-100-2, ES-2 Spa Pack, bromine floater, indoor
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    Re: This pool filter cannot be backwashed?

    Yes, seems it was not installed properly in the first place
    Is it worth the efforts to add a valve to it? or just keep it like this and do a thorough cleaning once a year?
    I am not sure how many more years it can last. By looking at the manual, I think it was installed in 2004.
    Probably I can wait until a new filter is needed?

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    n240sxguy's Avatar
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    Re: This pool filter cannot be backwashed?

    Quote Originally Posted by newpoo View Post
    Yes, seems it was not installed properly in the first place
    Is it worth the efforts to add a valve to it? or just keep it like this and do a thorough cleaning once a year?
    I am not sure how many more years it can last. By looking at the manual, I think it was installed in 2004.
    Probably I can wait until a new filter is needed?
    I vote add a valve or change the filter out depending on which one has a more attractive price. It would be a pain to take the whole filter apart every time you could've just back washed. It needs to be taken apart and cleaned once a year. You may be doing it once a month, and that will get old fast.


    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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    Re: This pool filter cannot be backwashed?

    I think it might be overly optimistic to think you can make it a year between major cleanings without backwashing during that year. The filter is designed to be backwashed when it starts to become too restricted by all the different stuff that gets into the pools water.
    When we talk about a yearly, through cleaning it's just that but that's on top of the regular normal maintenance of backwashing occasionally to rid it of the accumulation of "stuff" it's filtering out of the water. The problem I have in answering your question is there are so many variables as there are so many sources of stuff (grass clippings, tree leaves-needles-seeds, wind blown ??) that could be getting into your pool and not mine or not into yours that does get into mine.

    You started out by saying the pressure is reaching over 20 psi so it's time to clean. How long has it taken, this is an indication of how often you'll need to take the filter apart for cleaning in the future.

    IF . . the filter is correct for your pool then:
    First choice if it was my pool, I'd get a valve for this filter. Filters last a long time and the grids inside are replaceable if or when they rip. The valve seems to be about $75 https://www.google.com/#q=sp0710xr50+hayward
    That's the P/N I get from using your model on the Hayward site. Best to double check.

    Or replace the filter with something new that has a valve.

    It would be helpful if you added your location and pool info as outlined here: http://www.troublefreepool.com/conte...etting-started

    If you haven't read this yet, you should: http://www.troublefreepool.com/conte...f-pool-filters
    '70s IG Vinyl 32K gal, Lazy L, Hayward SuperPump 1.5hp 120V, S240 Sand Filter W/DE
    Solar Blanket, Well Water, Borax Added, TF-100 tester. ? too cold
    1979, 275gal Conway Emerald Spa P-100-2, ES-2 Spa Pack, bromine floater, indoor
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    Mod Squad zea3's Avatar
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    Re: This pool filter cannot be backwashed?

    How often you will need to backwash will depend on the size of your pool, how well you stay on top of your water chemistry, and how much organic debris makes its way into the pool on a daily basis. If you stay on top of the water and keep it balanced and have little to no organic debris in your pool (other than swimmers) you may not need to backwash more than once or twice a season. If there is a lot of vegetation in the area that ends up in the pool (leaves, blossoms, dirt, ect) then you may be happier with a sand filter.

    In looking at your picture, it looks like there is a push/pull valve coming out of a pump to the right of the filter. Is that true or is it coming out of something else? Also I don't see any other shut off valves in your picture. Do you have a way to shut off flow to the filter? A picture of the equipment pad from all angles would be helpful.
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    Re: This pool filter cannot be backwashed?

    Thanks you all. Had someone clean it. It's indeed a DE filter. I am going to keep it as it for now. And see how painful is it to maintain it without a valve.

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    Re: This pool filter cannot be backwashed?

    Since the thread started out with you asking about cost how much was it to have someone clean it for you
    '70s IG Vinyl 32K gal, Lazy L, Hayward SuperPump 1.5hp 120V, S240 Sand Filter W/DE
    Solar Blanket, Well Water, Borax Added, TF-100 tester. ? too cold
    1979, 275gal Conway Emerald Spa P-100-2, ES-2 Spa Pack, bromine floater, indoor
    TF-100, Best test kit - TFTestkits.net
    Please help keep the lights on, become a TFP Supporter!

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    Mod Squad jblizzle's Avatar
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    Re: This pool filter cannot be backwashed?

    I am curious too. It is not that hard, in fact, I plan to take mine apart today DE Filter Cleaning Tutorial
    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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