Discover how plumbing drawings detail the specifics of water and gas lines, including their sizing and destinations. Understand how these drawings lay out systems for both domestic water usage and gas appliances, ensuring efficient flow and usage.
Key Insights
- Plumbing drawings typically depict two main types of lines: those for potable water and gas, as well as those for wastewater. The drawings indicate the specific type and size of lines needed for different fixtures and appliances.
- Detailing of the lines includes their size and the fixtures they serve. For instance, in a bathroom, the drawings will show cold and hot water lines feeding the bathtub, sink, and toilet, with notable differences in pipe sizes to accommodate demand.
- Gas lines in the drawing are marked by a 'G', showing their path from the regulator through various appliances such as the oven, range, and hot water heater. This highlights the importance of detailed plumbing and gas line drawings in ensuring efficient, safe, and effective utility installation.
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Now, typically on plumbing drawings, we have two kinds of things. We have the lines for the water that you drink, also for gas, and then we would also have wastewater information. So this sheet is showing domestic water and gas.
So let's just zoom in to this bathroom in the upper corner. You can see that what's happening is I'm showing the cold water line, a hot and cold water line, and a hot and cold water line. So again, these are calling out the kinds of lines that we need to feed the bathtub and the sink, and then a cold water for the toilet.
And we again have the labels, bathtub 1, water closet 1, lavatory 1. You can see that we're saying here the size of the pipe that needs to be happening. Now you can see that at this point, it's saying 3 quarter inch cold water, but at the tub, it's saying half inch hot and cold at the toilet, half inch cold water, and half inch hot and cold at the sink. So what we're doing is we're having a larger line that's feeding into the room so that the system can accommodate hot and cold water based upon demand.
You can see over here, I have an HB, which stands for hose bib. So I have the cold water line that's coming into the bathroom. At the tub, it's branching.
One is going to the cold water for the handle. The other is a cold water line that's going to the hose bib. If I look over in the kitchen, you can see here's the gas line.
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See the line with the G in it? So that's the line that's going to be feeding from the gas regulator. It's going through the kitchen. It's going to be branching right here for the double oven.
And there's the symbol for the oven. So the gas line comes from the regulator. It goes through the kitchen.
There's also a branch going on down here to the range. I go back to the gas line. It branches for the double oven.
I continue on, and you can see it's branching right here to go to the forced air unit. I also have it branching to go to the dryer and going to the hot water heater, which is down here.