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WebRichard Trethewey learns how a perc test is used to assess the soil on the North Shore site.SUBSCRIBE to This Old House: http://bit.ly/SubscribeThisOldHouse.... WebDec 14, 2016 · Remove the Siamese connection, replace it with a cap that has been tapped with a gauge and test rig connection, plug the ball drip, and either blank off the check valve or spin it around in place in the piping. highest esg score
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