Each fixture is assigned a value from a table in the 2018 Uniform Plumbing Code on how much demand it puts on that system. The first thing we need to do is calculate our total fixture units, which is essentially how much demand we have on the water system in the house. Developed length of the most remote outlet.To size the meter, we’re going to need four key bits of information: (The blue represents the cold water lines and the pink our hot water lines.) In our example in the video, we have our water meter connected to a kitchen sink, a bathroom group downstairs (which comprises a lav, toilet, and shower), and a bathroom group upstairs with the same fixtures. Our main task is sizing our water meter or verify that our existing water meter has capacity to expand on whatever project we’re working on. If you’re making an addition or starting from scratch, this tutorial should be a big help. This blog post will cover the steps to our preferred method, using the 2018 Uniform Plumbing Code. This cannot be said for most building materials stripped from home and certainly not for PEX pipe.Knowing how to size your water lines ( PEX or copper) is essential if you’re a DIYer or new to the plumbing trade. Value of copper: The copper pipe that results from a demolition project can be sold because the material is typically valuable enough.For example, a half-inch copper pressure tee will cost about ten times less than a comparable SharkBite brand tee. Cheaper fittings: If you do decide to use copper fittings, they are cheaper than push-fit fittings.Copper has a far higher melt point and does not give off toxic fumes. Will not give off toxic fumes: As CDA points out, PEX is plastic and will melt and emanate toxic fumes in the event of a fire.But to connect to high-heat services, like your water heater, you need to make that final run with copper or special stainless steel braided connectors. More heat resistant: PEX is heat resistant and can even be used for under-floor radiant heating.For that, you need to either use a copper stub-out or buy special PEX fittings for his purpose. More rigid: PEX's flexibility is great when you want to go around corners but bad when you need to stub out to a toilet or sink.Recycled: About half of the copper used in the United States-which would include plumbing pipe and fittings-is created from recycled copper, according to the copper industry's trade group, Copper Development Association, Inc.The Spruce Home Improvement Review Board.
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