@@c-fuchan8229 應該不是所有屋都是這樣。 在加拿大有些城市都有裝防水鎚(water hammer arrestor )的規定,但多倫多好像仍然沒有什麼要求,今天我上市府的網站只見到以下市府教市民怎樣處理的方法,和你分享一下,我對水喉所知甚少,今年如果疫情好轉,回到香港找你飲茶☕️🍵。 * Problem can be related to a water hammer. Try these steps to resolve the problem: * 1. Turn off stop and waste valve in basement * 2. Fully open a tap in basement to begin draining of system. * 3. Once flow stops, close tap. * 4. While water is till off, open a tap at the highest level of your home. * 5. With top tap fully open, return to the basement to open the stop and waste valve, turn this valve on very slowly. * 6. Return to your top tap, let run for 1 minute, close tap. * 7. This process will recharge your system and should remove any air pockets causing water hammer. If issue is still there call a plumber.