The answer to 'why is my drainage system mud' is that a muddy drainage system is often caused by a blockage or damage in the system. This can happen when debris, soil, or other materials accumulate and prevent proper drainage, leading to standing water and mud. Common symptoms include slow or poor drainage, standing water, and muddy areas around the drainage system.
To fix a muddy drainage system, you may need to clear out any blockages, repair damaged pipes or components, and ensure the system is functioning properly. This may involve using a plumber's snake or other tools to clear out the drainage lines, or replacing cracked or damaged pipes. In some cases, the entire drainage system may need to be redesigned or replaced. If you're not comfortable tackling the problem yourself, it's best to call in a professional landscaping or drainage contractor to assess the issue and provide a solution.