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Also, a few systems have plastic filters permitted by the Virginia Department of Health. These systems are also not required to pump-out every 5 years because they routinely require more frequent maintenance. If you have an approved plastic filter, you may submit evidence and request being removed from the program. The Virginia Department of Health does not have a list of systems with approved plastic filters. Regular pumping and maintenance will save you money and protect the environment.
Plastic filters require regular maintenance to keep them from clogging and backing sewage into your home. Routine maintenance typically includes the removal and proper disposal of non-biodegradable solids from the filter and then hosing down the filter over your septic tank to return the filtered solids to the tank for additional treatment. While not mandatory, the Virginia Department of Health still recommends that systems with plastic filters pump have their septic tanks pumped regularly to maintain peak system performance and extend the life of your drainfield.