Too Much Sump Flow?

Discussion in 'Tips and Techniques' started by JH919, May 15, 2017.

  1. JH919

    JH919 Member

    Hello people,
    I'm looking to decrease the flow going through my sump. I have a 75 gallon tank, CPR internal overflow going into a 1" bulkhead with a ball valve (opened 100%) plumbed in. I also have a Ecotech M1 DC return pump. How do I slow down the flow rate? Do I just simply partially close the ball valve and slow down the return pump? This maybe a dumb question. Let's discuss...
  2. lmforbis

    lmforbis Administrator Staff Member

    I have a gate valve between the pump and the tank. I adjust flow with that.

    Don't do anything to reduce the flow from the tank to the sump. Reducing the flow from the sump to the tank will automatically reduce flow to the sump. Your water level in the sump will likely rise when you reduce flow.
  3. JH919

    JH919 Member

    Yeah, do I live with the sump return chamber water level being way to high? If I do that the protein skimmer compartment with be too high as well. What about reducing the overall system (DT & sump) water level? Just thinking out loud.
  4. lmforbis

    lmforbis Administrator Staff Member

    Just remove enough water to return the level to where you want it.
  5. JH919

    JH919 Member

    I'll give that a try.
    Last edited: May 16, 2017
  6. iidylii

    iidylii Active Member

    Or sit the protein skimmer on something to get it to the right height

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