Production of a veritable river of gray water by average American household; Variation in gray water systems; Three features essential to any gray water system; Answers on questions regarding legality of gray water use, use of water softener, and keeping the soil healthy....
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Device for coupling (connecting) tubes (18) including a body (1) provided with a bore (2) to receive the end of this tube and means for retaining the tube in the bore, which device is made up of a substantially frustoconical washer (13) of which the internal circumference is of ...