Plumbing Return Line Help

Discussion in 'Filters, Pumps, etc..' started by thepanfish, Dec 31, 2012.

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  1. thepanfish

    thepanfish Flying Squid

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    Should I oversize my return like I did for my drain? i. e. I used 1-1/4" PVC for the drain with a 1" bulkhead, should I do the same for the 3/4" return line?
     
    thepanfish, Dec 31, 2012
    thepanfish, Dec 31, 2012
    #1

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  2. link248

    link248 Ritteri Anemone

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    I wouldn't. I use 1" pvc for my drain and 3/4" for my return.
     
    link248, Dec 31, 2012
    link248, Dec 31, 2012
    #2
  3. N00ZE

    N00ZE Eyelash Blennie

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    Am I the same, the smaller the return the more pressure the water is coming out of the return.
     
    N00ZE, Dec 31, 2012
    N00ZE, Dec 31, 2012
    #3
  4. 2in10

    2in10 Super Moderator

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    No need to make the line larger than the outlet from the pump. You can gain a few more GPH out of the pump with a larger return line but not really worth the extra cost.
     
    2in10, Dec 31, 2012
    2in10, Dec 31, 2012
    #4
  5. thepanfish

    thepanfish Flying Squid

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    My problem is that my pump output (Waveline DC5000) is 1" barb, so should I hard plumb the return with a reducer bushing?
     
    thepanfish, Dec 31, 2012
    thepanfish, Dec 31, 2012
    #5
  6. Marshall O

    Marshall O Giant Squid

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    If your pump output is 1", I would personally run the entire return line in 1". Do not bush it down.
     
    Marshall O, Dec 31, 2012
    Marshall O, Dec 31, 2012
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  7. SPINNER

    SPINNER Fire Shrimp

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    Food for thought:) When a pump is rated at 2700gph and has a 1" outlet can you push 2700gph through a 1" pipe? When you find this answer it will answer your question too.
     
    SPINNER, Dec 31, 2012
    SPINNER, Dec 31, 2012
    #7
  8. thepanfish

    thepanfish Flying Squid

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    I don't have a choice, its drilled for 3/4". The pump is DC controllable so I can probably just downtune it.
     
    thepanfish, Jan 1, 2013
    thepanfish, Jan 1, 2013
    #8
  9. Marshall O

    Marshall O Giant Squid

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    Ah, I missed that in your first post. Then yes, I would look into decreasing the motor speed as mentioned.
     
    Marshall O, Jan 1, 2013
    Marshall O, Jan 1, 2013
    #9
  10. thepanfish

    thepanfish Flying Squid

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    Sorry I didn't mean to bold that, I didn't want to come off as yelling ;)
    I just bought a 3/4' adapter for it but thanks for the advive guys.
     
    thepanfish, Jan 1, 2013
    thepanfish, Jan 1, 2013
    #10
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