![]() ![]() This may include gray water (water from sinks and showers) or black water (water from toilets).Īs the liquid enters your septic tank, bacteria break down particles of grease and other organic matter until they become small enough to be carried out by either percolation into a leach field or absorption into an absorbent bed (also known as a drain field). Septic systems process waste that may include solid materials and liquids. Septic systems are designed to take the wastewater from your home that doesn’t make its way into the sewer and processes it in a way that makes it clean enough to be released back into the environment – without doing damage to the environment. These systems are typically located partially or entirely underground and consist of a tank and a drainfield. Let’s take a look at what makes up this complex system and why it’s so important for you and your family to live safely in your home.Ī septic system is a system that treats and disposes of wastewater and solids. To make sure that you don’t need your septic system replaced, it’s critical to understand exactly how septic systems function and why they’re so important to your health and the health of others around you. PSI is not responsible for candidates who mistakenly arrive at a test center for which they have not been scheduled and reserves the right to deny admission if a candidate arrives late for their exam.Septic systems have been around for a long time, yet they’re still misunderstood by many homeowners (and soon-to-be homeowners). ![]() There may be more than one PSI test center in the city you have elected to test in. ![]() Please check your confirmation and verify which test center you have been scheduled for.Please contact TDLR at in order to apply and obtain your exam pre-approval. If you have not received pre-approval for this exam, it is required before you can proceed.If you have already been pre-approved to register for this exam, simply click on the 'View All My Activities' link and follow the instructions on the page.PSI will not be responsible for any personal items and suggests that you leave in a safe place of your choosing. NOTE: NO personal items are to enter the testing center.Please click the icon below to download the "Candidate Information Bulletin." ![]()
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