Septic Tank Installation: A Comprehensive Guide

Septic tank installation is a crucial process for homes and properties that are not connected to a municipal sewer system. A septic tank is an underground, watertight container that receives and treats wastewater from your household. Proper installation ensures that your septic system functions efficiently, protecting both your property and the environment.


How Septic Tanks Work

A septic tank works by separating solids from liquids and treating the wastewater before it is dispersed into the drain field. Here’s a step-by-step breakdown of the process:

  • Wastewater Collection: All the wastewater from your home, including from toilets, sinks, and showers, flows into the septic tank.
  • Solids Separation: Inside the tank, solids settle at the bottom, forming a layer of sludge, while lighter materials float to the top, forming a scum layer.
  • Wastewater Treatment: The middle layer of liquid, called effluent, is partially treated by bacteria in the tank.
  • Effluent Disposal: The treated effluent is then released into the drain field, where it is further purified as it percolates through the soil.


Sizing Your Septic Tank

The size of your septic tank is determined by the number of bedrooms in your home and the expected water usage. Here’s a general guideline:

  • 1-2 Bedrooms: 750-1,000 gallons
  • 3-4 Bedrooms: 1,000-1,250 gallons
  • 5+ Bedrooms: 1,250-1,500 gallons

Larger properties or commercial buildings may require even larger tanks. Our team at L.P. Murray & Sons, Inc. can help you determine the right size for your specific needs.

Installation Process and Timeline

The installation of a septic tank involves several steps and typically takes 1-3 days, depending on the complexity of the project:

  1. Site Assessment: We conduct a thorough site assessment to determine the best location for the tank and ensure it meets local regulations.
  2. Excavation: We dig the necessary trenches and prepare the site for the tank.
  3. Tank Placement: The septic tank is carefully placed and connected to your home’s plumbing system.
  4. Drain Field Installation: We install the drain field, which is essential for the proper disposal of treated effluent.
  5. Final Inspection: We perform a final inspection to ensure everything is installed correctly and meets all safety and regulatory standards.


Maintenance and Care

Proper maintenance is key to the longevity and efficiency of your septic tank. Here are some essential maintenance tips:

  • Regular Pumping: The tank should be pumped every 3-5 years to remove accumulated sludge and prevent clogs.
  • Avoid Harsh Chemicals: Avoid using harsh chemicals and excessive amounts of water, as they can disrupt the natural bacteria in the tank.
  • Regular Inspections: Schedule annual inspections to check for any issues and ensure the system is functioning properly.
  • Protect the Drain Field: Avoid driving heavy vehicles or planting deep-rooted plants over the drain field to prevent damage.


With proper installation and regular maintenance, a septic tank can last 20-40 years. High-quality materials and professional installation play a significant role in extending the lifespan of your septic system.

Why Choose L.P. Murray & Sons, Inc. for Your Septic Tank Installation?

L.P. Murray & Sons, Inc. has been serving the Cape Elizabeth, ME area since 1946. Our family-owned business has built a reputation for hard work, honesty, and exceptional service. We understand the unique challenges and requirements of septic systems in our region and are committed to providing the best solutions for our clients. Whether you need a new septic tank installed, an existing system repaired, or routine maintenance, our skilled and experienced team is here to help. We take pride in our long history of service and our commitment to customer satisfaction. Trust the experienced team at L.P. Murray & Sons, Inc. for all your septic tank installation needs. Call us today at (207) 799-4216 to schedule a consultation and take the first step toward a reliable and efficient septic system.