And even that is only during winter when and if you drain the batch heater and use regular water pressure.

甚至乎只有在冬季，在你排空批量加热器、采用正常水压的时候才有压力。

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The filter pressure drainage and drainage are two ways to manually drain. Manual drainage when the water level below the level reached before the filter must be excluded.

本过滤器排水有压差排水与手动排水二种方式。手动排水时当水位达到滤芯下方水平之前必须排除。

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A small valve or faucet used to drain or reduce pressure, as from a boiler.

泄气阀，小龙头用来排空或降低压力的一种小阀门或小龙头，如锅炉上的。

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The only way to alleviate the pressure is to insert a tube or shunt to drain it.

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