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Copper Diameter and Pressure

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[QUOTE=hj;328503]quote; the galvy pipe being fulla rust. Rust will cause friction that will reduce pressure but at the same time its restricting the volume. This is why you can run one fixture without any issue.......

I do not see anything in the original posting which even mentions galvanized pipes. The problem is undersized main lines. 3/4" copper will probably give you the best results. 1" would be much more expensive and while it has the potential to deliver more volume, you probably do not have any application which would need it, or could use it.[/QUOTE]


Yes your right,I was reading another thread and just posted to the wrong thread,sorry.

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  1. Terry's Avatar
    A standard one-bath home with kitchen sink, dishwasher, water heater, clothes-washer, 1.6 tank toilet, lavatory, tub/shower combo and two hose bibs would be counted as 18 fixture units.
    Most standard two bath homes consisting of kitchen sink, dishwasher, water heater, clothes-washer, two 1.6 tank toilet, two lavatories, one shower, one tub/shower combo, and two hose bibs would be counted as 23.5 fixture units.
    Most standard three bath homes consisting of kitchen sink, dishwasher, water heater, clothes-washer, three 1.6 tank toilet, four lavatories, two showers, one tub/shower combo, one whirlpool bath and two hose bibs would be counted as 34 fixture units.