Is the slope needed on toilet pipes and how to calculate drain pipe slope.
The drain pipe slope calculator can be used to calculate the slope and total drop of a drainage pipe.
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Determine the diameter of the pipe you are working with.The drain pipe diameter for a household sink is either 1.5′′ or 2′′.The waste lines are usually 3′′ or 4′′.The main drain line in your house is usually 4′′ in diameter.
If you need to know the thickness, outside diameter or inside diameter of a pipe, this calculator is for you.
Measure the length of the pipe you are working with.The total pipe drop can be calculated.If you want to see the slope per foot, skip this step.
If you want to make it easier to get the right pitch, get yourself a digital level.
The diameter of the pipe affects the slopes given in the calculator.The International Plumbing Code says what the slopes should be.
35 states follow the International Plumbing Code.If you live in one of the states that does not follow the IPC, please check with your local state code for the required drainage slopes.