A powerful dishwasher can dramatically simplify your to-do list. However, if you have a septic tank, you might be worried about how these two household components will work together. Here are the answers to four frequently asked questions about how these appliances impact your home’s waste management system.

Top FAQ on Septic Systems & Dishwashers

Will the water from my dishwasher harm my septic system?

Normally, dishwashers don’t produce enough water to overload a standard septic system. However, talk to your septic contractor about your drain field’s limitations. Because this section of the system works slowly, a smaller or failing drain field might require you to use your dishwasher less often than you’d like.

What about my detergent of choice?

In most cases, the amount of dishwashing detergent will be so minimal in comparison to the rest of your household water waste that it won’t really affect your septic tank. However, if you have a big household or like to have guests over, it’s best to err on the side of caution. Choose a green detergent that’s free of phosphates – chemicals that can disrupt the delicate bacterial balance in your tank. 

Are energy-efficient models better for my septic system?

Dishwashers that are rated for energy efficiency — such as those certified by Energy Star®—are designed to use less water than standard models. Therefore, they’ll send less wastewater to your tank and drain field, relieving strain on the system. This means you might even be able to use your dishwasher more often without harming your waste management system.

What steps can I take to avoid overloading my system?

If you leave food on your plates before putting them in the dishwasher, the appliance will send the scraps out to your septic system along with the wastewater. To prevent solids from building up and eventually clogging your septic tank, always scrape off your dishes into the trash before loading your dishwasher. Also, talk to a septic contractor about the size of your tank. You may need to upgrade to a larger capacity to avoid needing frequent pumping.

If you have more questions about how your dishwasher and septic tank will interact, get in touch with Zook's Septic Services, LLC of Middleburg, PA. They’ve been serving area residents since 1988, and they’ll be happy to schedule repairs and inspections. They also perform pumping services and turn the waste into organic fertilizer for local farms. For more information on their work, visit the website. Call (570) 837-1466 to schedule your appointment.