sand-sink check valve 沉砂单流阀
You can control the temperature like normal by opening the cold water valve at the shower or sink.
我们只要打开连接在浴缸或的淋浴喷头的冷水阀注入冷水就能够调节水温。
Just open a hot water valve in a sink or shower and let the system drain.
我们只要打开浴缸或淋浴喷头的热水出水阀，把热水器的水放掉就行了。
When it is all drained, shut the "batch connect" valve and shut the hot water valve in the shower or sink.
热水器的水放完后，关闭连接热水器的供水阀及浴缸或淋浴喷头的热水出水阀。
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