Sorry, the web browser you're using is not supported by this website.

Please use Google Chrome, Firefox, Safari, or another browser to access Thank you.

Skip to main content

We use cookies to enhance your experience. For details on how we use cookies, collect data, & how to manage your consent please see our Cookie Policy & Privacy Policy.

How much fall do you need on a waste pipe?

Above ground and below ground horizontal drainage pipes should be laid. Flow velocities can be given from 1 in 40 to 1 in 112. The beginning calculations for pipe schemes can be done with a 1 in 80 gradient.

Let's Get It Fixed!

Our virtual experts can diagnose your issue (for free!) and resolve simple problems.

What Did You Think of This Article?

What Did You Think of This Article?

Shop Recommended ProductsShop HomeX Recommended Products