Effecting GPH?

Discussion in 'Filters, Pumps, etc..' started by Mistah J, Jul 27, 2010.

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  1. Mistah J

    Mistah J Flamingo Tongue

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    Long Island
    Hello-

    I was wondering if anyone knew if there would be any effect on the GPH / flow in my tank if I had a 3/4 inch return line split to come out of two loc line nozzles?

    I feel like the flow would have to be reduced but because the split is so minor I don't know how to measure the change.
     
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  3. blackraven1425

    blackraven1425 Giant Squid

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    The GPH will go down slightly due to loss from the split.
     
  4. 2in10

    2in10 Super Moderator

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    You will lose about 20gph.
     
  5. suckafish

    suckafish Montipora Capricornis

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    there would be a loss, but they have lokline flow increasers. kinda pricey I think
     
  6. AZDesertRat

    AZDesertRat Giant Squid

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    Increase the line out of the pump to 1" then drop it to the two 3/4" lines at the last minute and flow will probably increase due to reduced friction or head loss. Its always wise to upsize plumbing in fact Mag recommends it for their pumps.
     
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