Precast Concrete Septic Tanks
Sand Mountain Precast manufactures high-quality precast concrete septic tanks right here in Sylvania, Alabama. We stock a full range of residential and commercial sizes — and because we make them ourselves, you get a fresh product without the wait or the freight markup.
Our tanks are built from reinforced concrete with watertight construction, pre-installed baffles, and properly sized inlet and outlet openings. Every tank leaves our yard code-compliant and ready to set.
We serve contractors, homeowners, and municipalities across Alabama, Tennessee, and Georgia. Whether you need a single tank for a new home or a large order for a subdivision, give us a call and we’ll get you taken care of.
Why Choose Our Septic Tanks
Watertight Construction
Our tanks are cast and sealed to prevent groundwater infiltration and effluent leakage. Properly sealed joints protect your drain field and keep your system compliant for the long haul.
Code Compliant
Every tank we produce meets Alabama Department of Public Health standards and is compliant across our service area in Tennessee and Georgia. No guesswork on inspections.
In Stock & Ready
We keep common sizes in stock at our Sylvania yard. Order what you need and we’ll have it ready for pickup or delivery. No waiting weeks for a tank to be fabricated elsewhere.
Standard Features
Every tank we produce is built complete and ready for installation. Our tanks include everything your installer needs to connect and bury. No additional hardware required for standard installations.
- Reinforced precast concrete construction
- Watertight monolithic or two-piece design
- Pre-installed inlet and outlet baffles
- Properly sized inlet and outlet openings
- Heavy-duty concrete lid with access opening
- Smooth interior surface for efficient flow
- Sealed exterior for underground installation
- Compatible with standard riser systems
Available Sizes
We stock tanks from 1,00 to 1,500 gallons. Not sure what size your project requires? We’re glad to help.
| Capacity | Form |
|---|---|
| 1,000 Gallon | Standard |
| 1,000 Gallon | Low Profile |
| 1,500 Gallon | Standard |
| 330 Gallon | Grease / Pump tank |
How It Works
Choose Your Size
Contact us with your project details and we’ll help you select the right tank. We’ll confirm availability and get you a price with delivery if needed.
Delivery or Pickup
Pick up from our Sylvania yard or let us deliver. We work with your installer to get the tank on site when the hole is ready so the job keeps moving.
Set & Connect
Your licensed installer sets the tank, connects inlet and outlet lines, and backfills. Our tanks are built to go in smooth and pass inspection the first time.
Common Questions
Are your tanks approved for use in Alabama?
Yes. Our tanks are manufactured to meet Alabama Department of Public Health standards and are code-compliant across our service area. We can provide product specs if needed for your permit application.
Do your tanks come with lids?
Yes, every tank ships with a heavy-duty concrete lid. Access openings are included and compatible with standard riser systems if you need to bring the lid to grade.
How long do concrete septic tanks last?
A properly installed and maintained precast concrete septic tank can last 40 years or more. Concrete outperforms plastic and fiberglass in most soil conditions and doesn’t crush, float, or degrade the way alternative materials can.
Can I pick up a tank myself?
Yes, contractor pickups are welcome at our yard. You’ll need appropriate equipment to lift and transport the tank safely — call us ahead of time and we’ll give you weight and dimension specs so you can plan accordingly.
Ready to Order?
Call us or send a message to check availability, get a price, or ask any questions about our septic tanks. We’re glad to help with residential and commercial orders alike.