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Thread: Anyone here switched from sand to cartridge w/ quad filter?

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    Anyone here switched from sand to cartridge w/ quad filter?

    I'm close to making the switch, I only have a solid 4 month season with a few extra weeks If I'm lucky and if ill run my heat pump on overdrive.

    From what I understand and based on my pool size, I should only have to wash my cartridge filters once at the end of the season if I purchase a big unit like the Hayward swim clear c5030 525sqft.

    Does anyone have any regret after having made the conversion?

    Since the cartridge can filter much finer, is the water clarity noticeable in the daytime?

    I'm assuming the night time clarity must be greatly improved?

    Does any process change for your regular tasks like vacuuming, or opening the pool with a cartridge filter?
    18' x 36" Ovalish 80,000 Litre Vinyl IGP. 2 speed 1HP Hayward pump SP2607X102S. 300 Pound Sand Filter. Summit Sum5 Heat Pump, Goldline Controls Aqua Logic P4 System, T-CELL-15 SWG, Aqua Pod Remote Control, Pentair 7845xx02 light.
    TF-100 Test Kit, SpeedStir Stirrer, Pool Chemist in training.

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    linen's Avatar
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    Re: Anyone here switched from sand to cartridge w/ quad filt

    I am curious what is your reason for wanting to change?

    I do not fit the profile of you subject line but...I have both types at my house...cart on hot tub and sand on pool. I also have a short pool season. With properly maintained pool chemistry you water will be crystal clear in the daytime regardless of which filter type you have. A night, you might see a slight (and I stress slight) advantage with the cartridge, though imo that can be made up by adding DE to sand filter. I sure wouldn't switch to a cart just to get clearer nighttime water, there are other ways.

    One thing to remember about a cart filter is since you can't backwash, if you get algae, you will be cleaning it often during the shocking process. Cleaning carts is not my idea of fun. Also, if you get a lot of organic debris (such as leaf debris) and/or if you use a suction side cleaner, then just like backwashing more often, you may have to clean the cart more often. With that said, if you do get a cart, the one you listed is a nice oversized filter.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Mod Squad jblizzle's Avatar
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    Re: Anyone here switched from sand to cartridge w/ quad filt

    Given a pool of ~21k gallons, we would recommend a cartridge filter of 300+ sqft. The 525 is likely much larger than you would need with that short season.

    You can certainly get the larger one, but you very well could get away with a single cleaning with a smaller, cheaper filter.
    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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    Re: Anyone here switched from sand to cartridge w/ quad filt

    Quote Originally Posted by linen
    I am curious what is your reason for wanting to change?

    I do not fit the profile of you subject line but...I have both types at my house...cart on hot tub and sand on pool. I also have a short pool season. With properly maintained pool chemistry you water will be crystal clear in the daytime regardless of which filter type you have. A night, you might see a slight (and I stress slight) advantage with the cartridge, though imo that can be made up by adding DE to sand filter. I sure wouldn't switch to a cart just to get clearer nighttime water, there are other ways.

    One thing to remember about a cart filter is since you can't backwash, if you get algae, you will be cleaning it often during the shocking process. Cleaning carts is not my idea of fun. Also, if you get a lot of organic debris (such as leaf debris) and/or if you use a suction side cleaner, then just like backwashing more often, you may have to clean the cart more often. With that said, if you do get a cart, the one you listed is a nice oversized filter.
    So even though my cartridge is so oversized, I would still need to clean it during the pool opening when I'm shocking and when the water will most likely be green? I keep reading that I would get away with only one cleaning for the season but I didn't factor in opening and shocking as a separate cleaning.

    My pool guy has got me thinking of switching over, he has been happier since making the switch but I haven't made up my mind. In my case I'm not very hands on so when it comes to dealing with sand, I've never been comfortable with opening my filter, or changing my sand.

    I'm an IT guy, and I like to look at specs, I read the pool school stuff on filters and I get excited when I see that cartridges let you filter own to 10 microns where as sand is 30, maybe this means nothing in real world water clarity.

    Currently my water isn't metered but it will be one day but that isn't a driving force but I like the idea of not losing water, the chemicals being kept in balance better.

    I've also had seals break on sand filters before, maybe through my incorrect use but I'm assuming there is less to go mechanically wrong on a cartridge system?
    18' x 36" Ovalish 80,000 Litre Vinyl IGP. 2 speed 1HP Hayward pump SP2607X102S. 300 Pound Sand Filter. Summit Sum5 Heat Pump, Goldline Controls Aqua Logic P4 System, T-CELL-15 SWG, Aqua Pod Remote Control, Pentair 7845xx02 light.
    TF-100 Test Kit, SpeedStir Stirrer, Pool Chemist in training.

  5. Back To Top    #5
    Mod Squad jblizzle's Avatar
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    Re: Anyone here switched from sand to cartridge w/ quad filt

    You may get away with a single cleaning in a season ... ASSUMING ... you never have to go through the shock process. Once you get algae in the pool, all bets are off and you will likely have to clean the cartridge multiple times to get the pool clear. The same is true when you open. If you have algae, be ready to clean the cartridge to clear it out.

    So, if you are methodical about maintaining the appropriate chlorine level and never get algae, the cartridge (or really any filter), should be pretty hands off. Once you get algae though, cartridges become the most work, followed by DE, and then sand being the easiest (although slower to clear the water).
    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
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  6. Back To Top    #6
    linen's Avatar
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    Re: Anyone here switched from sand to cartridge w/ quad filt

    jbliz, beat me but here is my take...

    Quote Originally Posted by Rockstead
    So even though my cartridge is so oversized, I would still need to clean it during the pool opening when I'm shocking and when the water will most likely be green?
    If you open to a green pool, then a cartridge is not a great choice. However, we can help you reduce the likelyhood of opening to a green pool.

    Quote Originally Posted by Rockstead
    My pool guy has got me thinking of switching over, he has been happier since making the switch but I haven't made up my mind.
    Does he say why?

    Quote Originally Posted by Rockstead
    In my case I'm not very hands on so when it comes to dealing with sand, I've never been comfortable with opening my filter, or changing my sand.
    This boards concensus is sand should not need to be changed.

    Quote Originally Posted by Rockstead
    I like to look at specs, I read the pool school stuff on filters and I get excited when I see that cartridges let you filter own to 10 microns where as sand is 30, maybe this means nothing in real world water clarity.
    Specs for me too Others may disagree, but from what I have seen, this is more of a paper spec than something you really notice, even at nightime. Of course I have an agp, and my underwater lighting may not be as bright as some. If you are really serious about nighttime water clarity, then a DE filter would be even better than a cartridge. Again, you can add DE to a sand filter, and that can help achieve a higher level of nighttime clarity (whether or not it is really noticeable). Again, this is really a subjective criteria and you will get many opinions (one of which is mine...unfortunately).

    Quote Originally Posted by Rockstead
    I've also had seals break on sand filters before, maybe through my incorrect use but I'm assuming there is less to go mechanically wrong on a cartridge system?
    In terms of valves, I would believe this is true. On the flip side though, the cartridges do need replacing after some use.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

  7. Back To Top    #7

    Re: Anyone here switched from sand to cartridge w/ quad filt

    Have you tried skimmer socks? By catching some debris before it gets to the filter, you may be able to reduce the specs you are dealing with.
    23,000 gallon in ground pool with rock waterfall and spillover spa, Aqualink control system, Polaris 380 cleaner, Purex Triton Clean&Clear Plus cartridge filter. Located in The Woodlands, Texas.

    Pool owner since Nov 2008, Trouble Free since April 2009. Happy to help when I can.

  8. Back To Top    #8

    Re: Anyone here switched from sand to cartridge w/ quad filt

    When it comes to cartridges, can I still vaccum to waste?

    Or sometimes after heavy rain fall, I would set my sand filter to waste in order to get the pool level to the sweet spot of the skimmer.
    18' x 36" Ovalish 80,000 Litre Vinyl IGP. 2 speed 1HP Hayward pump SP2607X102S. 300 Pound Sand Filter. Summit Sum5 Heat Pump, Goldline Controls Aqua Logic P4 System, T-CELL-15 SWG, Aqua Pod Remote Control, Pentair 7845xx02 light.
    TF-100 Test Kit, SpeedStir Stirrer, Pool Chemist in training.

  9. Back To Top    #9
    Mod Squad jblizzle's Avatar
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    Re: Anyone here switched from sand to cartridge w/ quad filt

    Generally cartridge filters do not have multi valves, so there is no waste setting. If you are just trying to remove as little water, then you could have a spigot after the pump, but that would not work for vacuuming.

    Posted from my Droid with Tapatalk ... sorry if my response is short
    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
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Mod Squad Bama Rambler's Avatar
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    Re: Anyone here switched from sand to cartridge w/ quad filt

    You can always plumb in a 3-way valve between the pump and filter so you can send water to waste if you wanted to.
    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
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