How Often Should I Have My Sewer Lines Jetted

I own a small shopping center with two restaurants. I have the lines snaked every three months or so. Should I have the lines jetted and will they be clean longer?

Jetting equipment cleans sewer lines better than snakes. Jetters use varying degrees of water pressure to cut through grease and other debris that build up in drain pipes, especially in restaurants, and draw it back where it can be vacuumed out, providing a more thorough cleaning. Enzyme-type sewer and drain cleaning and maintenance products, such as Roto-Rooter Pipe Shield® or Drain and Grease Trap Treatment, can be automatically injected into the line to help keep grease and food waste from building up in the line. The enzyme eats the grease and turns it into a liquid, which washes away with water, preventing most backups.