Neptune Flow Sensor - Synergy Reef Overflow

Discussion in 'Aquarium Controllers' started by MaddyP, Oct 10, 2017.

  1. MaddyP

    MaddyP 'Til Reefdom Come... R2R Supporter R2R Excellence Award Partner Member 2019 Build Thread Contributor

    Jul 21, 2016
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    San Pedro, CA
    This is my full siphon on Synergy overflow. Is anyone running a flow sensor on their full siphon line? It seems no matter how closed down my gate valve is, I get sharp drops in flow. No air is making it into the lines, I have a steady trickle on the secondary drain line.


  2. jml1149

    jml1149 Active Member

    May 14, 2016
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    I am not running full siphon on my return, but this makes sense to me. It's not really sharp drops, its only 5% or so, and when I watch my siphon over time, I see occasional fluctuations, like the pressure in the return is building building building, slows for a second or two, then releases back out. I think this is because my return pump and return flow is not matched 100%, if this makes sense.
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