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The I and I passage
From Louis Blazek • Creston | Beware home owners of which type of I and I you choose.
Forty-two years ago, when putting in the sanitary sewer line for my new home, I was going to build; next to the house area, I installed a back flow I and I trap. It was a four-inch castiron with a brass flapper that was to let the flow of waste away from the house and stop any flow into the basement.
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