AlltanksCom offers a full line of polyethylene septic tanks to meet the needs of the chemical, agricultural, petroleum, water, and waste water industries. Our below ground plastic septic tanks for sale come in a range of sizes and styles to fit your needs – whether you need a 1000 gallon septic tank, 500 gallon septic tank or 1500 gallon septic tank.
A poly septic tank can be easily installed with virtually no maintenance, and has a longer service life than concrete and fiberglass. Our plastic septic tanks are approved by many state and local health departments in the U.S, and have been certified by both IAPMO™ and CSA™. All products are provided with a three-year warranty from date of manufacture.
AlltanksCom Plastic Septic Tank Features:
- Rotationally molded, one-piece seamless constructed tank
- Molded in rib creates a superior installation below grade
- Light weight provides easy installation; most can be transported in a pickup and handled by two people
- Watertight lids are standard, with optional manhole extensions and lid risers available.
- Available in both single and double compartment (2/3 – 1/3)
- Inlets and outlets come pre-installed
- Chemical resistant to gases (hydrogen sulfide), chemicals, and soil chemicals
Prior to installing a poly septic system, check your local health department for specific requirements that may be enforced by your county health department. Give us a call and we’ll help determine which tanks are approved in your area.
Product Description
SEPTIC TANKS: STANDARD SINGLE COMPARTMENT | ||||||||
Gallon Capacity |
Length | Width | Height | Height to Inlet |
Height to Outlet |
Manhole Diameter |
Part No. |
Avail |
500 | 101″ | 51″ | 42″ | 36″ | 33″ | 1-20″ | 41320 | B,C,D,E,F,G,H |
500 (MO) | 101″ | 51″ | 42″ | 36″ | 33″ | 1-20″ | 40796 | E |
750 Plumbed | 96″ | 52″ | 58″ | 51″ | 48″ | 1-20″ | 41712 | B,C |
750 – Plumbed (NY) | 96″ | 48″ | 58″ | 51″ | 48″ | 2-20″ | 41714 | G |
750 – Plumbed | 96″ | 48″ | 58″ | 51″ | 48″ | 2-20″ | 41814 | G |
750 Plumbed | 100″ | 52″ | 56″ | 51″ | 48″ | 2-20″ | 41815 | E |
750 Plumbed – (AR,KS,LA) | 100″ | 52″ | 56″ | 51″ | 48″ | 2-20″ | 41713 | E |
1000 – Plumbed (NY) | 101″ | 52″ | 66″ | 59″ | 56″ | 1-20″ | 41717 | G |
1000 – Plumbed | 101″ | 52″ | 66″ | 59″ | 56″ | 1-20″ | 41716 | B,C,G |
1000 NJ | 100″ | 56″ | 62″ | 59″ | 56″ | 1-24″ | 40361 | G |
1000 Plumbed | 102″ | 60″ | 58″ | 51″ | 48″ | 2-20″ | *** | A |
1250 Plumbed | 116″ | 55″ | 66″ | 57″ | 54″ | 2-20″ | *** | B,C,E,F,G,H,L |
1500 Plumbed | 133″ | 55″ | 66″ | 57″ | 54″ | 2-20″ | *** | A |
A=ALL; B=St. Bonifacius, MN; C=Lancaster, OH; D=Griffin, GA; E=Shawnee, OK; F=Tooele, UT; G=Owego, NY; H=Washougal, WA; L=Hanford, CA
SEPTIC TANKS: WITH COMPARTMENT DIVIDER | ||||||||
Gallon Capacity |
Length | Width | Height | Height to Inlet |
Height to Outlet |
Manhole Diameter |
Part No. | Availability |
750 Plumbed (2/3-1/3) | 96″ | 48″ | 58″ | 51″ | 48″ | 2-20″ | 41816 | G |
750 (2/3-1/3) Plumbed (TX) | 100″ | 52″ | 56″ | 51″ | 48″ | 2-20″ | 41715 | E |
1000 (2/3-1/3) Plumbed 1000 (2/3-1/3) Plumbed IAPMO |
102″ | 60″ | 58″ | 51″ | 48″ | 2-20″ | *** | A |
1250 (2/3-1/3) Plumbed 1250 (2/3-1/3) Plumbed IAPMO |
116″ | 55″ | 66″ | 57″ | 54″ | 2-20″ | *** | B,C,E,F,G,H,L |
1500 (2/3-1/3) Plumbed 1500 (2/3-1/3) Plumbed IAPMO |
133″ | 55″ | 66″ | 57″ | 54″ | 2-20″ | *** | A |
***See State Approvals
A=ALL; B=St. Bonifacius, MN; C=Lancaster, OH; D=Griffin, GA; E=Shawnee, OK; F=Tooele, UT; G=Owego, NY; H=Washougal, WA; L=Hanford, CA