How We Helped One Homeowner Install a Custom Engineered Pressure System

Site Evaluation & Planning

From the start, this job required a deep understanding of both local regulations and soil behavior. Our team worked alongside a county representative and a licensed engineer to conduct on-site test pits.What we found:

• Gravity-fed systems weren’t an option.
Soil conditions didn’t allow for natural drainage, so we pivoted to a mounded, pressurized septic system.

• Soil limitations increased system complexity.
Poor percolation meant more materials, a larger drain field, and added cost.

Pressure System Efficiency

The gravity tank feeds into the pressure tank, which pumps effluent at 50 gallons per minute — the exact rate needed for optimal distribution across the field.

Components Installed

• High-efficiency pump
• Alarm system with floats
• Anti-drainback (ADV) valves
• Multiple inspection ports for future troubleshooting
• PVC pipe for longevity and reliability

Utility Surprise? No Problem.

During excavation, we ran into unmarked underground utilities — not ideal, but handled quickly and professionally. A licensed electrician was brought in to make all repairs safely and up to code.

Quality Assurance & Compliance

With both the engineer and health department involved, this install had to pass multiple rounds of inspections.

Permitting & Inspections:

• Soil evaluation with county present

• Full engineered system design submitted and approved

• Final sign-off by both the engineer and the county

Testing & Backfilling:

• We performed both leak tests and pressure checks

• Backfilling was done with tracked equipment to avoid damaging components while still compacting soil to prevent future settling

Post-Install Touches

We’re not just here to install and leave. Our team also took care of restoring the yard and protecting the system’s long-term functionality.

Testing & Backfilling:

• Sprinkler line and head repairs
• Sod and landscaping repairs
• Landscape edging replaced
• Installed Infiltrator-brand risers and lids for easy access

Warranty Coverage:

• 1-year warranty on the pump

• 2-year warranty on all other system components

Contact Us for Your Next Excavation Project

Whether you need foundation excavation, utility systems setup, or other site preparation services, Silverline Excavation is here to help. With our proven expertise in commercial projects like this septic installation in Northern Colorado, we are ready to provide the quality and reliability you need for your next construction endeavor.

Contact us today to discuss your project requirements and get started on building a solid foundation for success.