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Technical Support / Re: Water under the coach
« Last post by David Ciotti on April 18, 2024, 11:52:42 AM »On my 2002 Marquis that pipe is a low point drain in the box that houses the water pump and the ice maker cutoff. I learned this when a service tech was repairing my water pump which would not pump water anymore. It stopped when I let the fresh water tank run out of water. It turns out that my water pump did not self prime and had to be coaxed into pumping water again by removing the water filter at the pump and opening both hot and cold water faucets in the water bay and running the pump for several minutes. It is working fine now.