Skip Navigation Infiltrator Water Technologies Logo

IM-1530 Tank

IM-1530 Logo

The Infiltrator IM-1530 is a lightweight strong and durable septic tank. This watertight tank design is offered with Infiltrator’s line of custom-fit risers and heavy-duty lids. Infiltrator injection molded tanks provide a revolutionary improvement in plastic septic tank design, offering long-term exceptional strength and watertightness.

Do not install the tank in vehicular traffic areas. The tank is designed for non-traffic applications.

All IM-1530 tanks are a two-piece design that efficiently nests for shipping and are available through our network of certified Infiltrator distributors.

Find a Distributor › Contact an Expert › Manuals, Guides & CAD Details ›


62"W x 176"L x 55"H
(1567 mm x 4460 mm x 1384 mm)

Access Port
24" (610 mm)

501 lbs (228 kg)

Total Capacity
1787 gal (6765 L)

Working Capacity
1537 gal (5818 L)

Burial Depth
Minimum 6" (152 mm)
Maximum 48" (1219 mm)


  • Strong injection molded polypropylene construction
  • Lightweight plastic construction and inboard lifting lugs allow for easy delivery and handling
  • Structurally reinforced access ports eliminate distortion during installation and pump-outs
  • Reinforced structural ribbing and fiberglass bulkheads offers additional strength
  • Can be installed with 6" to 48" of cover
  • Can be pumped dry during pump-outs
  • Suitable for use as a septic tank, pump tank, or rainwater (non-potable) tank
  • No special installation, backfill or water filling procedures are required
  • No special water filling requirements are necessary
  • The tank may be backfilled with suitable native soil. See installation instructions for guidance.

Download the Cutsheet ›

Download the Cutaway ›

Installation & Tip Videos ›


Many installation requirements and options are governed by local codes instituted by the health department in your area. When in question, check with the local health department for specifics and follow their code instructions. Any design or installation questions not answered here can be directed to the Infiltrator Water Technologies’ Technical Services staff by calling 1-800-718-2754.

All Infiltrator tanks are certified by IAPMO and CSA the most recognized certification agencies for tank technology. Please check with your local health department prior to use to be sure.

No, IM-series tanks can only be assembled by those who have been trained and authorized by Infiltrator Water Technologies to assemble IM-tanks.

No, Infiltrator tanks can be installed using suitable native soil.


Infiltrator’s tank installation instructions outline when buoyancy control measures are required and are available on this website. If buoyancy control measures are determined to be necessary, the Infiltrator IM Series Septic Tank Buoyancy Control Guidance document is also available on this website and provide specific design options for anti-floatation measures.

Infiltrator tanks can be installed with a minimum of 6" and a maximum of 48" of cover.

Infiltrator’s riser guidance document and a video are available on this website to provide specific design options for attaching a variety of commercially available risers manufactured by Infiltrator Water Technologies.

No, the structural bulkhead system is an integral part of the tank and cannot be modified or removed.