Rainwater Pipe Installation No Slope Required

Rainwater Pipe Installation No Slope Required

Plumbers must be familiar with SNI 8153:2015 especially an MEP planner should understand this standard very well. This SNI teaches how to design a plumbing installation in a building. Not only talking about what the ideal form of pipe installation should be but also explaining how many pipe dimensions are required by www.miraclerooter.com/burbank_plumbing.html .

SNI 8153:2015 not only accommodates planning for pressurized water pipe installations (such as clean water installations) but can also be used for planning wastewater pipe installations that generally flow only by gravity without any auxiliary equipment such as water pumps, so a slope is required at horizontal pipe installation.

Not only does the installation of a wastewater pipe from the toilet or kitchen require a slope, but the installation of a rainwater drainage pipe also does the same. Although the flow rate of rainwater is greater than that of wastewater from the kitchen, the pipe installation must still be sloped to facilitate the flow of water. SNI 8153:2015 states that the slope for rainwater pipe installations is 1%, 2%, and 4%. But in reality in the field, the slope of the pipe installation is often less than 1%. The more sloping the slope results in the lower flow velocity, the lower the flow, the larger the required pipe dimensions. But this is often not applied in the field, the pipe dimensions are not made larger when the slope is small.

Seeing this fact, some of you must be wondering “what’s so difficult about making a drainage pipe installation slope?” As you already know that in the building there are many pipe installations, there are cold water pipes, hot water, hydrants, drainage pipes, and others. Of course, the planner must be smart in arranging the layout of the entire pipe installation so that it is sufficiently above the ceiling, moreover the space for installation will be reduced due to the beam structure.

This is what limits the slope of the horizontal pipe installation because it will have an impact on aesthetics. The longer the pipeline, the lower the end of the pipe and the lower the ceiling which results in the shorter the height of the room. If this has happened, there are only two options, namely to increase the pipe down so that there is no need to make a long horizontal installation that goes into the pipe shaft, or to reduce or even eliminate the slope of the pipe. These two things are an unfavorable choice for building owners because they hurt comfort and safety.

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