Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 8 of 8

Thread: Question about cartridge to DE conversion

  1. Back To Top    #1

    Join Date
    Sep 2015
    Location
    NJ
    Posts
    15

    Question about cartridge to DE conversion

    Recently had to take a closer look at my filter ( I have a Sta-Rite S8M500 -- 20k gal pool) and in doing so I realized I have to replace my cartridge next summer. Looking at the prices, they cost a big chunk of money ($500 for the set). That's when I came across a star rite DE filter that has a cartridge looking filter (but it's still DE !!). It looks like it has all the benefits of both DE and Cartridge worlds. I'm talking about a S7MD60 or 72. So I started wondering, is there any way of converting my cartridge filter to DE? Has anyone done it? Any pros or cons of this? Any thoughts? Thanks.

    I came across the following that makes me think it might be possible. The cost of these parts + a new multi port valve would come around ~$500.

    --Elbow and bulkhead assembly --
    Amazon.com : Pentair 23910-1100S Modular Conversion Kit Replacement Sta-Rite System 3 SMD-Series D.E. Filter : Outdoor Spas : Patio, Lawn Garden


    --DE filter --
    Amazon.com : Pentair 25023-0160S D.E. Element Replacement Sta-Rite System 3 SMD-Series Modular Pool and Spa D.E. Filter : Outdoor Spas : Patio, Lawn Garden

  2. Back To Top    #2

    In the Industry

    Join Date
    Jun 2015
    Location
    Wildomar, California
    Posts
    423

    Re: Question about cartridge to DE conversion

    Yes, I've done that conversion with that filter. You add in the grids and manifold and a push/pull BW valve. A replumb also.

  3. Back To Top    #3

    Join Date
    Sep 2015
    Location
    NJ
    Posts
    15

    Re: Question about cartridge to DE conversion

    Hi OldPoolMan,

    Did you use this new style SMD cartridge or the vertical grids one? I guess both might work as long as you get the right manifold,etc.

  4. Back To Top    #4

    In the Industry

    Join Date
    Jun 2015
    Location
    Wildomar, California
    Posts
    423

    Re: Question about cartridge to DE conversion

    Well, you can't BW a cartridge filter so that defeats the purpose. I used the vertical grid configuration in the three filters I converted. Also, where you BW the filter DE is an issue that must be considered.

  5. Back To Top    #5

    Join Date
    Sep 2015
    Location
    NJ
    Posts
    15

    Re: Question about cartridge to DE conversion

    Initially that's what I thought too (ie. I wouldn't be able to BW the filter). However, in reading about these model filter (link below), supposedly you are able to BW them. You have a good point about where to BW the DE. I'll have to check with the city to make sure I don't get in trouble if I were to do this. I know some neighbors BW to the street but I don't know if that's okay. But if it is, I can try to do that or BW to my backyard. Thanks for the feedback!


    http://www.pentairpool.com/products/...series-171.htm

  6. Back To Top    #6

    TFP Guide

    pabeader's Avatar
    Join Date
    May 2015
    Location
    Cartersville Ga
    Posts
    4,112

    Re: Question about cartridge to DE conversion

    Very interesting idea. If my totally oversized filter didn't do such a good job, I would seriously look into this. Just being able to BW and not have to tear the thing down would be great! That's one thing I miss with cartridge filters. But with the switch to DE you can BW, recharge and be good to go. Love it!
    Bob - INTEX 12x24 owner, 'New to me' Kreepy Krauly Sand Shark, Test kit: TF-100 w/Speed Stir

  7. Back To Top    #7

    Join Date
    Sep 2015
    Location
    NJ
    Posts
    15

    Re: Question about cartridge to DE conversion

    Yea, these SMD filter look great. The best of both worlds. At least on paper . I came across this youtube video. But it does look like in this case it was not setup for BW. But you can see how doing a thorough cleaning, is as easy as cleaning a cartridge filter.

    Sta-Rite System 3 Modular DE Pool Filter Cleaning- Model S7MD60 - YouTube

  8. Back To Top    #8

    Join Date
    Jul 2016
    Location
    Houston, TX
    Posts
    1

    Re: Question about cartridge to DE conversion

    Quote Originally Posted by Resnick View Post
    Yea, these SMD filter look great. The best of both worlds. At least on paper . I came across this youtube video. But it does look like in this case it was not setup for BW. But you can see how doing a thorough cleaning, is as easy as cleaning a cartridge filter.

    Sta-Rite System 3 Modular DE Pool Filter Cleaning- Model S7MD60 - YouTube
    Resnick, did you do this conversion? I have the same filter S8M500 and want to convert. Cleaning these cartridges is a PIA.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •