Turn on water supply and open nearby hot water faucet to purge air from water system.
Turn on water supply and open nearby hot water faucet to purge air from water system.
打开水源，打开附近的热水水龙头，排出水系统内的空气。
Turn on water supply and open nearby hot water faucet to purge air from water system.
打开水源，打开附近的热水水龙头，排出水系统内的空气。