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Septic System Maintenance

Septic System Maintenance

Advanced
4.4 hours
10 Steps
14 Items

About This Project

This project outlines the essential steps for maintaining a home septic system to ensure its longevity and proper function. It covers regular inspections, pumping, and mindful usage of the system.

Tools & Materials

Anvil 47 in. Wood Handle Carbon Steel Digging Shovel 77470-939

Anvil 47 in. Wood Handle Carbon Steel Digging Shovel 77470-939

TEKTON Straight Probe (1/16 in. x 3 Inch) PNH21111

TEKTON Straight Probe (1/16 in. x 3 Inch) PNH21111

Measuring Tape

Measuring Tape

Defiant 2000 Lumens LED Slide-to-Focusing Aluminum Flashlight 90706

Defiant 2000 Lumens LED Slide-to-Focusing Aluminum Flashlight 90706

GEARWRENCH SAE/Metric 72-Tooth Combination Ratcheting Wrench Tool Set (32-Piece) 39327

GEARWRENCH SAE/Metric 72-Tooth Combination Ratcheting Wrench Tool Set (32-Piece) 39327

Stanley 15-1/2 in. Super Wonder Bar Pry Bar 55-525L

Stanley 15-1/2 in. Super Wonder Bar Pry Bar 55-525L

Steps

Common Problems

Exposure to dangerous septic gases or risk of falling into the tank.

Solution: If you smell strong, foul odors (like rotten eggs) or feel dizzy, immediately move away from the tank opening. Never work alone near an open septic tank. Use a long pole or stick with a hook to retrieve any dropped items; do not reach in with your hand. If you must lean close, ensure good ventilation and have a buddy spot you.

Prevention: Always work with another person. Ensure good ventilation by opening the tank for a few minutes before leaning over. Never enter a septic tank. Be aware that hydrogen sulfide, a common septic gas, can quickly numb your sense of smell, making you unaware of its presence.

Difficulty locating the septic tank or its access risers, or digging in the wrong place.

Solution: Consult your home's 'as-built' plans (often available from your local health department or building permit office) for a diagram of your system. Use your TEKTON Straight Probe by gently pushing it into the ground in a grid pattern in the suspected area. When you hit something hard and flat, carefully dig around it with your shovel to verify it's the septic tank or riser lid.

Prevention: Keep a copy of your septic system's layout plans readily accessible. After successfully locating the risers, consider marking their positions with GPS on your phone or by placing permanent, visible markers above ground (like a decorative garden stone) to make future access easier.

Misinterpreting the levels of scum and sludge during interior inspection, leading to incorrect decisions about pumping.

Solution: Use your measuring pole and flashlight to determine the thickness of the scum layer (floating on top) and the sludge layer (at the bottom). As a general rule, if the scum layer is thicker than 6 inches or the sludge layer is thicker than 12 inches (or if the combined scum and sludge layers occupy more than 30% of the tank's liquid depth), it's time to pump. When in doubt, take photos and consult a septic professional.

Prevention: Before inspection, research the typical scum and sludge accumulation rates for your tank size and household usage. Keep a detailed record of previous pumping dates and the observed levels to track accumulation over time.

Septic tank lids are stuck, extremely heavy, or the bolts are seized, making them difficult or dangerous to open.

Solution: If bolts are seized, apply a penetrating oil and let it soak for an hour before attempting to loosen them with your ratcheting wrench. For stuck lids, use the Stanley Pry Bar to gently lift and separate the lid from the riser edge. If a lid is too heavy to lift safely alone, recruit a strong helper. Never use excessive force that could cause injury or damage the lid or riser.

Prevention: When reinstalling lids, clean the threads of the bolts and lightly coat them with anti-seize lubricant or grease. Ensure the lids are properly seated and sealed to prevent dirt and water from cementing them in place.

Damaged or cracked septic tank lids or risers found during inspection.

Solution: Minor cracks in concrete lids might be temporarily repaired with hydraulic cement, but any significant damage, especially to plastic risers or larger cracks in concrete, necessitates replacement. Contact a septic professional immediately to get the correct replacement parts and ensure they are installed safely and securely.

Prevention: Avoid driving vehicles or heavy equipment over the septic tank and drainfield area. Ensure lids are properly sealed and covered with a sufficient layer of soil to protect them from environmental damage and accidental impact.

Improperly re-sealing the septic tank lids after inspection or pumping, leading to odors, debris entering the tank, or safety hazards (cross-threading bolts or overtightening).

Solution: Thoroughly clean any debris from the lid and riser sealing surfaces. Carefully align the lid with the riser opening. Start tightening the bolts by hand first to ensure they engage correctly and prevent cross-threading. Once finger-tight, use your ratcheting wrench to snug them down, but do not overtighten, as this can crack plastic lids or risers. Ensure any sealing gaskets are properly seated.

Prevention: Before removing the lids, take a photo of how they are seated and secured. If the existing seal is old or damaged, consider replacing it with a new one when you reinstall the lid. Apply a small amount of anti-seize lubricant to the bolt threads for easier future removal.

Signs of drainfield failure are observed, such as standing water, overly lush green grass, or foul odors in the drainfield area.

Solution: If you notice any of these symptoms, immediately reduce your household water usage as much as possible. Avoid flushing anything non-biodegradable down the toilet. Contact a qualified septic professional for an immediate assessment of your drainfield system. Early intervention can sometimes prevent the need for a full drainfield replacement.

Prevention: Conserve water throughout your home to reduce the load on the drainfield. Avoid pouring grease, harsh chemicals, or non-biodegradable items down your drains. Keep large trees and shrubs away from the drainfield area to prevent root intrusion, and never drive vehicles or place heavy objects over the drainfield to prevent soil compaction.