"Pipefall" is the new and easy to use pipe measuring /levelling tool. It has 4 preset "industry standard" level settings 1:40, 1:60, 1:80 and 1:100. Pipefall is the quick and easy way to ensure the desired gradient is being achieved consistently. Just choose your desired fall, slide and click the level body into place over the correct colour coded spot. You must ensure the bubble is between the two lines.