ANN ARBOR, Mich. – As of January 1, 2010, new lead content requirements in California (commonly known as AB 1953) will mandate a maximum weighted average lead content of 0.25 percent for plumbing ...
Backflow preventer installation costs between $105 and $1,400, with the average property owner spending $325 per backflow preventer. Backflow preventers are essential in many commercial and some ...
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