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全国很多城市都出现过蓝水现象:打开住户家里的水龙头,流出的水竟然是蓝色的!由于部分坐便器水箱生活饮用水管配水件出水口在水箱最高水位以下,属于淹没式进水,小区及住宅楼供水系统管路损坏停水维修或者由于其他楼层住户装修改造给水管道时关闭、开启供水主管阀门,使供水管道产生负压时,坐便器水箱里含有蓝色洁厕剂的水就会倒流到供水管道里,当供水恢复正常时又流入其他住户及本住户的供水支管,就会出现蓝水现象
Many cities across the country have blue water phenomenon: open the household faucet, the water is actually flowing blue! As part of the toilet water tank drinking water pipe water outlet in the highest water level below the submerged into the water, Residential and residential building water supply system pipeline damage to stop water or repair due to other floors of households to modify the water supply pipe closed, open the main water supply valve, water pipe to produce negative pressure, the toilet tank containing blue toilet water Will flow back into the water supply pipe. When the water supply is normal, it will flow into the water supply pipe of other households and their own households, causing blue water phenomenon