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  1. D

    Filter Head Loss

    I have a Pentair Sand Dollar SD60 sand filter. My pump died so I'm trying to size a new one but I can't figure out what the head loss from the filter is. Can anyone help me? Thanks! Dana
  2. D

    Pump Sizing/Selection Help Needed

    Hi Everyone, We bought a house with an existing above ground pool (specs in my signature). TFP has been a huge help in sorting out chemistry. Now our pump has died and I'm hoping you can help me choose a new one. I've read a number of great technical posts here but they're above my paygrade. I...