The answer to 'how to fix hydro jetting' is to first inspect the system and clear any blockages or debris. Hydro jetting is a plumbing technique that uses high-pressure water to clear out built-up debris, grease, and other obstructions in pipes. To fix hydro jetting, you'll need to locate the access point, connect the hydro jetter, and run the system to flush out the pipes.
Be sure to take safety precautions like wearing eye and ear protection, and avoid spraying water on electrical components. Hydro jetting is generally recommended every 12-24 months to maintain pipe health, but if you're experiencing frequent clogs or backups, it may need to be done more often. If you're not comfortable performing hydro jetting yourself, it's best to call a professional plumber to handle it.