Everything comes down to cost. If leaks slow down over five years or more, just add a little can last for a few more years. I don't see why it shouldn't be done. Sometimes a leak could be the condenser or a big problem and you might just need a new air conditioner. Every part has its lifespan.一切都歸結為成本。如果五年或更長時間內洩漏速度太慢,只需再增加幾年。我不明白為什麼不應該這樣做。有時洩漏可能是冷凝器或一個大問題,您可能只需要一台新空調。每個部分都有其使用壽命。