A drain line and air gap (see literature ES-AG/EL/TC) should be piped from the relief valve connection as shown, where evidence of discharge will be clearly visible and so that water damage will not occur.

• 排泄管和气隙(或称气隙，请参阅样本ES-AG/el/TC)应该根据图示从安全阀连接处接出管道，要使得排泄物清晰可见，以避免发生水破坏事故。