moving mobile home plumbing inlet 15 feet

stompoutbermudaNovember 12, 2011

Hi! I live in a mobile home and am doing some remodeling outside. One of the things I need to do is move my water inlet from near my outside water heater closet to the space below my kitchen window. Can I direct plumb the inlet (with a 15' galvanized pipe extention) to a hole that I will drill below my window and plumb it directly to the water pipe going to my sink? Would this continue to fill all the pipes in my house if I close off where it is currently plumbed?

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My experience with mobile homes is extensive but from long ago. Back then, the supply piping was all the same size in the entire unit. On that basis, and if that is the case with your unit, your idea should work rather well. But the present supply near the water heater helps keep the pressure even between the hot and cold supplies. Moving the input point farther from the heater probably will make the hot water pressure lower than that of the cold due to pressure losses in the longer piping run. Will your idea work? Yes, but perhaps not as well as the system does at this time.

    Bookmark   November 13, 2011 at 9:33AM
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Okay! Thanks! The reason I want to move the inlet is because I want to install a whole house filter. But I will need to move the pipe so that it will be in a place I can stand up and have easy access to change the filters....... this would mean running the pipe from the main to 15' away and then through the filter and then back 15' to the original mobile home inlet.

Question... if I just run the pipe from the main another 15' and tap into the cold water pipe under my kitchen sink (which is on an outside wall) would my hot water heater still get water and would the pressure be compromised too bad?

    Bookmark   November 13, 2011 at 5:31PM
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The extra piping plus the filter will result in some pressure drop. Unavoidable. But the pressure may be adequate after the change- or it may not be. No way to tell from here. If you would call it "great" at this time, it probably will be OK later.

    Bookmark   November 13, 2011 at 9:06PM
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So I can just plumb the main straight into my kitchen sink cold water inlet and it will still flow to my water heater and everywhere else after I cap off the current inlet?

    Bookmark   November 14, 2011 at 1:07AM
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Water will flow in a pipe in whatever direction some force pushes it. Only an on-site evaluation by a experienced person can predict the effect on pressure.

    Bookmark   November 14, 2011 at 7:34AM
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Thank you Bus Driver!!

    Bookmark   November 14, 2011 at 9:54AM
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