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Thread: Proper Sizing of Copper Supply Line to Cottage

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    sea-bee chuck b's Avatar
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    Jan 2011
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    Default Proper Sizing of Copper Supply Line to Cottage

    Just bought new lake side cottage in Northern Michigan (a real project at a great price). Currently on a neighbor's shared well. I am going to replumb the entire cottage this spring removing the mix of galvanized, plastic and copper in favor of completely sweated copper joints and piping.

    What size main copper line line should I run (1"??) with eventual branching off to 3/4" and 1/2" copper, for the future new Deep Well that I will have drilled in a year or two. Not sure what the customary supply line diameters are. Have seen a "black hose" connection at some cottages, and copper in others.

    Also uncertain in which order the sediment filter, water softener and expansion tank are situated. Are pressure relief valves necessary for small cottages (600 square feet) and where are they installed in the lines? Also, can a "dog house", i.e. a roofed enclosed lean-to 2 x 4 construction, attached to the small bathroom be constructed for the above items, to also include the water heater?. It would be weather-tight as electrical supply lines are involved for the electrical water heater and water softener. All will be drained before the winter each year.

    Any good suggestions for water softeners and sediment filters. Have seen both GE and Whirlpool brands at the "Big Box" stores. Are there better choices and what micron level filtration is recommended? Thank you!
    Last edited by chuck b; 01-23-2011 at 05:57 AM.

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