Hello richard! sorry we didn’t see this comment in our blog folder until now did john come by and help you already? if not, please feel free to call () - and we’ll be glad to help you out! You have successfully signed up and will hear from us shortly. Our licensed plumbers have hour availability and are ready to help when you need them most! There are many causes of blockages common causes are tree roots growing into the pipes, a build of soap or grease deposits.