{
  "Settings": {
    "Calories Needed Per Pump": 10.0,
    "Pressure Needed For Production": 1.0,
    "Pressure Per Pump": 1.0,
    "Water Per Pump": 200
  }
}

But when I or any player uses the pump they still only use 5 cal and get 50 water. I'm guessing I set something wrong here.

I believe youd have to adjust the CS file for it to take effect,

{
        private bool Changed;

        private float caloriesPerPump = 10f;
        private float pressurePerPump = 0.2f;
        private float pressureForProduction = 1f;
        private int waterPerPump = 200;

        #region Config

        protected override void LoadDefaultConfig()
        {​

{
            caloriesPerPump = Convert.ToSingle(GetConfig("Settings", "Calories Needed Per Pump", 10f));
            pressurePerPump = Convert.ToSingle(GetConfig("Settings", "Pressure Per Pump", 0.2f));
            pressureForProduction = Convert.ToSingle(GetConfig("Settings", "Pressure Needed For Production", 1f));
            waterPerPump = Convert.ToInt32(GetConfig("Settings", "Water Per Pump", 200));

            if (!Changed) return;
            SaveConfig();
            Changed = false;
        }