# Pumping interval

A term used when buying septic service.

How often a tank on the book is due, which is what makes the route recur at all.

A three-year interval on a residential tank means each customer is a third of a job a year, so the size of the book and the size of the year are different numbers. It also decides how quickly neglect shows: a route where intervals have quietly stretched looks steady on last year's revenue and is losing customers who simply have not been called. Ask for the due-date distribution, not the customer count.

Part of: Buying a Septic Service Business (https://searchspheresource.com/guides/buying-a-septic-service-business)

Source: https://searchspheresource.com/guides/buying-a-septic-service-business/terms/pumping-interval
Not dated: The same editorial definitions as the glossary, inside a trade.

Site index for machines: https://searchspheresource.com/llms.txt