PumpControl

local tank = peripheral.wrap("back")
local info
local amount
local capacity
local percentage
local outputRedstone

while true do
  info = tank.getTankInfo("unknown")
    for k,v in pairs(info) do
    for x, y in pairs(v) do
      if x == "amount" then
        amount = y
      end
      if x == "capacity" then
        capacity = y
      end
    end
  end

  percentage = amount / capacity

  outputRedstone = (percentage >= 0.25)

  redstone.setOutput("bottom", outputRedstone)

  print("Percentage: "..percentage..", output: "..tostring(outputRedstone)..", time: "..os.time())

  sleep(2)
end