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  1. operatorjoe

    sealing old septic tanks

    I live in a small town in middle Tennessee. The town has a problem with I&I. The system only treats effluent from septic tanks. When system was built existing old concrete septic tanks were used. The tanks were not sealed against ground water intrusion. The ground water causes huge swings in...
  2. operatorjoe

    Chlorine feed question

    I work in a large water treatment facility. Chlorine is added after ozone quench/depletion. Periodically chlorine feed is disrupted. The disruption is characterized by instant loss of vacuum to chlorinator. The loss of vacuum is instantaneous and system immediately starts to recharge vacuum in...
  3. operatorjoe

    Pump problem

    First off I know nothing about electrical engineering so please (yes and no) answers or explain as if I were 5 years old. I work at a water pumping facility that has had a lot of trouble with 1 pump that has been offline for 3+ years. Basic information 1. 200HP 20MGD low lift submersible...
  4. operatorjoe

    Will a Venturi flow tube in a filter deliver accurate flow under negative head conditions?

    I have noticed that the gravity flow filters in our water treatment plant have been allowed to run off the scale on loss-of-head gauges and I am wondering if a venturi is accurate if the flow is actually being pulled by vacuum (or very little head)rather than a pressure flow. If it does cause...

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