A proper slope in a plumbing system is essential to ensure proper drainage and prevent clogs, leaks, and other problems. In general, a 2% slope is considered the standard slope for pipes in plumbing systems. A 2% slope means that the pipe drops 2 inches for every 100 inches of run, or 2 millimeters for every 100 millimeters of run.

Creating a 2% slope in a plumbing system involves cutting pipes to the correct length, fitting them with appropriate fittings, and making sure that the entire system is sloped in the correct direction. Plumbers typically use a level to ensure that pipes are cut and fitted at the correct length and angle.

In terms of fittings, there are several types of fittings that are designed to help plumbers create a 2% slope in their plumbing systems. For example, there are fittings that allow plumbers to change the direction of pipes without affecting the slope, fittings that allow plumbers to adjust the slope of pipes, and fittings that allow plumbers to extend the length of pipes while maintaining the slope.

Here’s a step-by-step process with an example on how to create a 2% slope in a plumbing system:

Determine the length of run: This is the length of the pipe that runs from one end to the other. For example, if you are installing a pipe that runs from the bathroom sink to the sewer line, you would measure the distance between the two points.

Determine the drop: Using the 2% slope formula, you can determine how much the pipe needs to drop over its length of run. For example, if the length of run is 100 inches, the pipe should drop 2 inches over that distance.

Cut the pipe: Using a hacksaw or a PVC cutter, cut the pipe to the correct length. Make sure that the cut is square and that the end of the pipe is smooth.

Dry fit the pipes: Fit the pipes and fittings together, but do not glue them yet. This will allow you to make any necessary adjustments to the length or slope of the pipes.

Check the slope: Using a level, check the slope of the pipes. Make any necessary adjustments to the length or angle of the pipes to ensure that they are sloping at a 2% angle.

Apply primer and glue: Apply primer to the inside of the fittings and to the outside of the pipes. Then, apply glue to the fittings and insert the pipes into the fittings. Make sure that the glue is spread evenly and that the pipes are fully inserted into the fittings.

Allow the glue to cure: Allow the glue to cure completely before using the pipes. This typically takes around 15 minutes, but can take longer depending on the temperature and humidity.

Test the pipes: Once the glue has cured, test the pipes by running water through them. Check for any leaks or other problems.

By following these steps and using the appropriate fittings, plumbers can create a 2% slope in their plumbing systems, ensuring proper drainage and preventing clogs, leaks, and other problems.