Septic Installation & Replacement

When do you need a new septic system?

You likely need installation or replacement when drain fields fail, backups recur, or you are building new. Warning signs include slow drains, sewage odors, pooling water or lush grass over the field, and gurgling pipes. When pumping and repairs no longer hold, a full replacement restores reliable, code-compliant treatment.

New construction in Tuscola County and surrounding Thumb communities requires a permitted septic system before occupancy. If you are adding bedrooms or a new home, your system must be sized for the expected daily flow.

For older properties, a chronically failing drain field or a cracked, undersized tank is often best solved by replacement rather than repeated repairs. We assess the whole system and give you an honest recommendation.

Repeated backups or slow drains throughout the home
Standing water, odors or unusually green grass over the drain field
A cracked, collapsed or undersized existing tank
New construction or a home addition
A failed point-of-sale or county inspection

What permits and testing does Michigan require?

Michigan septic installations require a county health department permit, which is issued only after soil evaluation and percolation (perc) testing confirm the site can treat wastewater. Testing determines soil type, water table depth and absorption rate, which set the system size and design. Acme Sewer manages this permitting process for you.

Soil and perc testing show how quickly effluent moves through the ground. Sandy, well-draining soils allow conventional systems, while heavy clay or high water tables may require an engineered or mound system.

We coordinate with the local health department so your system is designed, sized and sited to meet Michigan code and pass final inspection the first time.

County health department construction permit
Soil evaluation (texture, structure, depth to water table)
Percolation test for absorption rate
System sizing based on bedrooms and daily flow
Required setbacks from wells, property lines and water

What septic system types can be installed?

The right system depends on your soil, lot size, water table and household flow. Conventional gravity systems work on well-draining soil, while pumped, mound and engineered systems serve difficult sites with clay, shallow bedrock or high groundwater. We recommend the most dependable, cost-effective option your site allows.

Soil and perc results drive the choice. The goal is a system that treats wastewater fully, protects groundwater and lasts for decades with routine pumping.

Common septic system types and typical site conditions
System type	Best-fit site conditions
Conventional gravity	Deep, well-draining soil with low water table
Pressure-dosed / pump	Flat lots or where gravity flow is limited
Mound system	Shallow soil, high water table or slow perc
Engineered / ATU	Poor soil, small lots or sensitive environments

How does the installation process work?

Installation follows a clear sequence: site evaluation, soil and perc testing, system design and permitting, excavation, tank and drain field placement, backfill, and final county inspection. Most residential installations are completed in a few days once the permit is approved, weather and soil conditions permitting.

We start with an on-site assessment and handle testing and permit paperwork. Once approved, our crew excavates, sets the tank, builds the drain field and connects the sewer line to your home.

After backfill and grading, the county inspects the system before it is put into service. We leave the site clean and walk you through simple maintenance to protect your investment.

On-site evaluation and consultation
Soil, perc testing and permit application
System design sized to your household
Excavation, tank set and drain field construction
Backfill, grading and final county inspection

How long does a new septic system last?

A properly installed and maintained septic system typically lasts 25 to 30 years or more, with the drain field often being the limiting component. Tanks are commonly 1,000 to 1,500 gallons for a residential home. Pumping every 3 to 5 years and avoiding overload are the keys to a long, trouble-free lifespan.

Quality installation matters as much as maintenance. Correct sizing, proper soil, careful compaction and protected drain field areas all extend system life.

We build to Michigan code and advise you on habits that keep your new system healthy for the long haul.

Why choose Acme Sewer for installation?

Acme Sewer is a family-owned, fully licensed and insured Michigan septic contractor with deep roots in the Thumb and Great Lakes Bay Region. We handle permits, testing, design, excavation and inspection in-house, offer 24/7 emergency service, practice environmentally responsible disposal, and price every job clearly and upfront with no hidden fees.

Family-owned with rural Thumb dependability
Fully licensed and insured in Michigan
Permits, testing and inspection handled for you
Clear, honest, upfront pricing
Serving Caro, Vassar, Saginaw, Bay City, Midland and Freeland

Frequently Asked Questions

Do I need a permit to install a septic system in Michigan?

Yes. Michigan requires a county health department construction permit for every new or replacement septic system. The permit is issued only after soil evaluation and perc testing confirm the site is suitable. Acme Sewer handles the permit application and county coordination as part of your installation.

What is a perc test and why does it matter?

A percolation test measures how quickly water drains through your soil, which determines whether wastewater can be treated properly. The results decide what system type and size your site needs. Soils that drain too slowly, like heavy clay, may require a mound or engineered system instead of a conventional one.

How long does septic installation take?

Once the permit is approved, most residential installations are completed within a few days, depending on system type, soil and weather. Permitting and testing beforehand can take longer since they involve the county. We give you a realistic timeline up front so you can plan around the work.

What size septic tank do I need?

Tank size is based on the number of bedrooms and expected daily wastewater flow. Most residential homes use a 1,000 to 1,500 gallon tank. We size your system to Michigan code during design so it comfortably handles your household without premature backups or overload.

Should I repair or replace my old septic system?

If your system backs up repeatedly, the drain field is saturated, or the tank is cracked or undersized, replacement is often more reliable than ongoing repairs. We assess the full system and give you an honest recommendation, so you only replace what truly needs replacing.

Can you install a system on a difficult lot?

Yes. Lots with clay soil, high water tables, shallow bedrock or limited space often need a mound, pressure-dosed or engineered system. Soil and perc testing guide the design. We have experience across the Thumb and Great Lakes Bay Region and build systems that fit challenging sites.

Do you handle the excavation too?

Yes. Acme Sewer provides full excavation for septic installation and replacement, including tank placement, drain field construction and sewer line connection. Handling everything in-house keeps your project on schedule and ensures the work meets Michigan code from dig to final inspection.

Trusted Septic Resources

Homeowner guidance from authoritative sources on septic system care, maintenance, and Michigan regulations:

Septic System Installation & Replacement in Mid-Michigan