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  • Results 1 to 11 of 11

    Thread: S/G output question

    1. #1
      JGS107 is offline Senior Member
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      S/G output question

      About to build 4 of these guys and wanted to know if I can plumb it all in 2” pipe. Reason I’m asking is because I have to get all 4 outputs dump into a shower and 2” would be a lot easier and cheaper haha. So all input is welcomed. Thanks

    2. #2
      GoldieGirl's Avatar
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      I have 3 that are plumbed in all 2” and work fine. I have valves between the pumps and filters to fine tune the flow to exactly just below the point where the top layer is fluidizing and have never had a problem with input exceeding output and overflowing the barrels during everyday operation. However, I have to clean with the pump off because it is too much flow for the 2” waste pipe to accommodate while the air is running. I would go with 3” for that pipe if I was re-doing.
      Last edited by GoldieGirl; 2 Weeks Ago at 11:03 AM.
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      Cheers,
      Ci


    3. #3
      BWG is offline Senior Member
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      Noticed you mentioned "all" and then "outputs". 4 SG filters can take considerable flow. Depending on your layout maybe a combination of 3 and 2 inch pipe would be a good solution. It all depends on flows, lengths and fittings. Plus extra consideration needs to happen on any gravity flow sections.

      Long term the price difference is small. Don't kill output that you are paying for in pump cost and monthly electricity for a few dollars pipe savings now.

    4. #4
      JGS107 is offline Senior Member
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      The reason I want to use 2” output on just the return side is to fit my shower tray better. I will keep the waste line output as 3”. Sorry for the confusion

    5. #5
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      Duplicate
      Last edited by BWG; 2 Weeks Ago at 01:48 PM.

    6. #6
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      Short 2 inch gravity returns to a shower distribution tray shouldn't be a problem for 2,000 gph flows. Sketch it out with fittings, lengths and elevation change and plug into the gravity flow calculator to be sure.

    7. #7
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      I would never do more than TWO S/G filters into one 2" outlet.

    8. #8
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      Quote Originally Posted by birdman View Post
      I would never do more than TWO S/G filters into one 2" outlet.
      Each filter will have its own 2” output totaling 4 dumping into my shower tray. Just wanted to make sure I can maximize the filters flow limit but through a 2” outlet instead of 3”. If not then I’ll make it work because ultimately I want the most flow I can get from them

    9. #9
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      Have you considered running 3" outputs out of all the SG barrels to the shower and reduce to 2" fitting into the shower. If flow is a problem, it will be easier to modify the inlet fitting into the shower than rebuild the barrels and all the piping.

    10. #10
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      Quote Originally Posted by Grumpy View Post
      Have you considered running 3" outputs out of all the SG barrels to the shower and reduce to 2" fitting into the shower. If flow is a problem, it will be easier to modify the inlet fitting into the shower than rebuild the barrels and all the piping.
      That’s a great point

    11. #11
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      Quote Originally Posted by JGS107 View Post
      Each filter will have its own 2” output totaling 4 dumping into my shower tray. Just wanted to make sure I can maximize the filters flow limit but through a 2” outlet instead of 3”. If not then I’ll make it work because ultimately I want the most flow I can get from them
      I also have a S&G filter + shower combination but I'm interested see how you're feeding yours. I couldn't find any pegboards the right size so I have a clear tote with a bunch of holes inside the black tote, to distribute the water evenly throughout the top compartment.

      By the way all of my plumbing/outputs are 2" but the drum overflowed during it's first test run with it being empty. My pump flows about 3600GPH at 0 head(2400GPH at 4'). It did equalize after I filled it up with the required gravel and made some minor adjustments on the return pipe, but I'm glad I still installed a ball valve in-between the pump & filter.
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