The thing on the right hand side looks like a back flow preventor. Is this for lawn irrigation?
The thing on the right hand side looks like a back flow preventor. Is this for lawn irrigation?
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谢谢。这个是在Building的外墙上。重来没有用过。Lawn是用Sprinker。
-瞎猫抓鼠-
♂
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01/27/2013 postreply
15:09:29