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Plumbing RoughNotify the plumbing contractor to begin their work a few days after the rough carpenters begin to work. There needs to be some overlap on the job when these two trades can work together. Portions of walls may need to be removed then replaced, flooring may need to be removed then replaced, and support material may need to be added.The plumbers will probably need to make a mess of your flip before it gets better. If you have plans to relocate or add new bathroom or kitchen aspects which need water, drains, and vents, allow enough time for the work to be done. Rough plumbing involves removing old stuff and putting new stuff in its place. Sometimes portions of walls and floors need to be removed to access the plumbing. This takes time and coordination.If your flip is a two level or more house, plan on quite a bit of removal and rework.Although the plumbing code requires venting of main lines, consider adding vents where they can be added in addition to the minimums. Another matter to discuss with the plumber is to add expansion chambers at each faucet location on both the hot and cold lines. This will prevent the slamming of the water lines when no expansion chambers are present.If you have purchased an older home with galvanized water supply lines and black soil pipe drains, be prepared for the removal and replacement of all of them. In the inspection process these water lines may have looked great. But once a plumber tries to add to these lines, problems will always follow. This means expense will be added to the flip. Do not be surprised if there are extra charges above the contract amount which will occur due to problems in the existing lines.
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Prepared 2006-2011 David Ullian Larson
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