As with any onsite septic system it is best to try to stager your wash loads through out the week. Even though the Jet system’s fixed film media is designed to keep your plant operating at peak performance during excessive hydraulic loading, such as a heavy wash day, it will operate best with a steady flow of water from your home. Also some brands of detergents are easier for your system to digest. If possible use a low-phosphate detergent, like Ivory Snow, harsher detergents like Tide and Fab can slow the biological process of the plant, increasing the chance for the plant to pass solids into your drain field.