Mon - Fri: 8AM - 5PM 316-370-6100 info@arkvalleyutilitysolutions.com
Septic Tanks
Septic tanks are essential components of onsite wastewater systems for homes not connected to municipal sewers. They collect and treat household wastewater by separating solids from liquids before the effluent flows to a drain field. The two most common materials for septic tanks are concrete (the traditional choice) and polyethylene (often called poly or plastic tanks). These tanks will either be 1000 gallons or 1500 gallons in volume. Each has distinct advantages and drawbacks, particularly regarding durability, installation, and long-term performance. Give us a call to schedule your septic tank install.
Polyethylene (Poly/Plastic) Septic Tanks
Polyethylene tanks, made from durable molded plastic, have gained popularity as a modern alternative, especially for residential use.
Advantages:
• Resistant to corrosion and deterioration — Unlike concrete, poly tanks do not suffer from chemical breakdown by septic gases or acids, offering better long-term integrity in corrosive conditions (e.g., high-sulfate soils or iron-rich water).
• Lightweight and easy installation — They are much easier to transport, handle, and install—often without heavy machinery—reducing labor costs and allowing placement in hard-to-reach sites.
• Lower upfront cost — Generally more affordable to purchase and install.
• Watertight and low-maintenance — Seamless construction minimizes leaks, and they resist rust or cracking from soil movement better in some cases.
Disadvantages:
• Limited burial depth — Most poly tanks are rated for shallow cover only. Manufacturers typically specify a maximum of 24–48 inches (2–4 feet) from the top of the tank to finished grade, depending on the model (e.g., many standard units max out at 2 feet or 24 inches, while reinforced ones allow up to 48 inches). Deeper burial risks crushing or deformation under soil weight unless special heavy-duty or ribbed designs are used.
Concrete Septic Tanks
Concrete septic tanks have been the standard for decades due to their robustness and widespread availability.
Advantages:
• High durability and longevity — Well-made concrete tanks can last 40 years or more with proper maintenance, resisting heavy soil pressure and environmental stresses.
• Stability — Their significant weight prevents them from floating or shifting in high groundwater areas or unstable soils.
• Larger capacities — Concrete tanks often support bigger sizes and higher volumes without structural issues.
• Universal approval — They are accepted in virtually all regions and building codes.
Disadvantages:
• Susceptible to deterioration — Over time, hydrogen sulfide gas (produced by anaerobic bacteria in the tank) combines with moisture to form sulfuric acid, which corrodes the concrete—especially above the water line on walls, lids, and baffles. This leads to cracking, spalling, crumbling, or holes, accelerating failure.
• Heavy and costly installation — Weighing thousands of pounds, they require cranes or heavy equipment, increasing labor and transport costs.
• Potential for sudden failure — When cracks or corrosion breach the tank, it can lead to immediate leaks, groundwater contamination, or system backups, often requiring urgent and expensive repairs or replacement.
• Higher upfront cost — Typically more expensive than poly tanks, with added installation expenses.
Outlet Filter
Replacing your lateral fields can be costly, which is why we install outlet filters as a crucial last line of defense. As shown on the left, filter has successfully trapped a significant amount of solids that could clogged the lateral field. The best part? Cleaning it is simple—just pop it out once a year and spray it down with a garden hose. Keep system running smoothly with minimal effort!
