Lua ComputerCraft Openblocks Tank

m = peripheral.wrap("openblocks_tank_0")
mon = peripheral.wrap("left")

-- loop so constantly updates
while true do
  tanksTable = m.getTankInfo("unknown")
  maintank = tanksTable[1] -- gets data for tank

  -- prints all data to computer
  shell.run('clear')
  for k, v in pairs(maintank) do
        print(tostring(k)..": "..tostring(v))
  end

  -- prints only capacity/amount to monitor
  mon.clear() -- resets monitor
  mon.setCursorPos(1,1)
  mon.write("Liquid: "..maintank.rawName)
  mon.setCursorPos(1,2)
  mon.write("Capacity: "..maintank.capacity)
  mon.setCursorPos(1,3)
  mon.write("Amount: "..maintank.amount)

  -- waits 5 seconds
  sleep(5)
end
--pastebin get H6cCFjDR tank