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  • Results 1 to 13 of 13

    Thread: Why build one, when you can build TWO

    1. #1
      DangerDave is offline Senior Member
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      Why build one, when you can build TWO

      So I've started the plan to put back into my system a S&G and since my bead filter can handle ~4k GPH rather than bleeding off the excess why not run it though another S&G. I recall seeing a layout that leveraged a single airblower with valves to feed either S&G. So my question is what else have people done to tie the S&G together?

      For example, the waste line, technically the waste ports on the S&G's could face each other and then WYE join to go to waste.

      Anyone have any pics of any pairs of S&G filters in action?

    2. #2
      Mild Bill's Avatar
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      Here’s ours
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    3. #3
      DangerDave is offline Senior Member
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      That's so clean... not fired up yet I suspect!

      I see the knife valves you have on the output to waste. I'm considering those as well (since they don't have to be perfectly sealed?). I assume you have them on the TPR side as well? They seem to be a little costly, do you have any leads on lesser pricey valves?

      Are you feeding the water in at the bottom or in the side next to the building?

    4. #4
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      They are running. The water enters at the bottom and empties into the stream. I forget the cost of the knife valves but much cheaper than 3” ball valves.
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      Last edited by Mild Bill; 04-16-2019 at 12:00 AM.

    5. #5
      DangerDave is offline Senior Member
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      This has me wondering. A single barrel, 3/4 full with rock and sand and then then full with water is pretty heavy. You have 3 of them! Did you run any calculations on the elevated support structure? I'm terrified of going high like you and having the system tilt, or worse fall over.

    6. #6
      Mild Bill's Avatar
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      You are correct they are very heavy. I'm no architect but I think it's built heavy enough to stand for many years. This one replaced a platform with 2 S&G barrels that stood for a few years without incident. This photo is before I attached the 2x6 cross bracing for the step. The only thing I would change now is raising the foundation blocks a little to keep legs from getting wet.
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      Last edited by Mild Bill; 04-16-2019 at 09:46 AM.

    7. #7
      DangerDave is offline Senior Member
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      Quote Originally Posted by Mild Bill View Post
      The only thing I would change now is raising the foundation blocks a little to keep legs from getting wet..
      Sorry, what does that mean?

    8. #8
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      I have the legs sitting on blocks. I wished I would have left the blocks higher out of the ground. That way any rain water that might pool around the area wouldn't get to them.
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      DangerDave is offline Senior Member
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      Ahh. Well I'm sure the pressure treated posts are rated for ground contact and wet conditions. They'll last 10 years easy.

      You could, if you like a little risk, jack up a post location and cut off a bit of post and then stick another block in.

    10. #10
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      Well you know what they say about sleeping dogs. I have it very level so I don't want to mess with that. Having them as level as possible helps with air going to a high side.

    11. #11
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      Here is what I did. Two left drums are moving beds and two right side drums are S&G's. You can see they are sitting on cinder blocks, very sturdy, and landscape blocks, also very sturdy.

      Name:  07-21-15 #1 (1024x576).jpg
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      I failed to mention that the S&G's air lines are teed together with one inlet for my spa pump and then ball valves on each filters air line for control of the boil. I do one at a time. Each has an independent waste line that I quick couple swimming pool hose to and flush into flower beds.

      All of that is hidden on backside of pond.

      Name:  09-06-15 #2 (800x600).jpg
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      Perhaps this might give an idea,
      Carl
      Carl Sowell


    12. #12
      DangerDave is offline Senior Member
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      Thanks for the pics! Looking good. I've noticed a few others paint all the equipment, pipes and all. Have you found any negatives with doing that? Ever have to take something apart and have issues with the paint? Tried to reuse something and with paint on the PVC, you can't? Do the valves have any issues turning?

    13. #13
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      Dave,

      If those questions were meant for me, than I have never had any issues with them being painted. First off, there is no way the sprayed on paint could interfere with the internals of a valve to cause binding or stuck stems. Age will do that and especially if you don't use decent valves. The reason I paint everything is obviously to look better but also to protect the PVC pipe from the sun's UV rays. As far as re-using a painted piece, yes I do, by cleaning with PVC purple primer and then sanding with a fairly large grit paper. The new joint will be as strong as an original one. I should add that all of the PVC piping, valves, fittings as well as the 55gl. drums were sprayed with a plastic primer before color went on. All comments come from personal experience, others may feel differently.

      Main thing is , always have fun,
      Carl
      Carl Sowell


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