Is there a drainage power wash ?

A plumber just advised me to have a service called power wash at least once every three years. It supposes to clean all the drains and pipes connecting to city sewage system to avoid any clogging. I have never heard anything like that before so I am trying to do some researches first.





Please give me some information If any of you understanding something about it.





Thanks.Is there a drainage power wash ?
ridgid makes a special gas powered pressure wash deal with a special head that helps force the hose through a main drain we use it for restaurants to clear grease out of the drain lines its a ok system but i dont really push it that much for residential drain systems.........Is there a drainage power wash ?
Have you had any issues with your drains? The only reason I would think a home drain system would need it is if the pipes are not to proper grade. If the underground pipes are flat or have bellies slowing the flow, they may need flushed to avoid build up and blockage.

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