Portable Gray Water Tanks

Portable Gray Water Tanks for Wastewater Storage on the Go

Grey Water Tanks With Mobile Options

Gray water is wastewater from sinks, showers and laundry, not toilets. To hold it at a jobsite, cabin, event or off-grid home, our Septic Holding Tanks category has above-ground and buried options. The above-ground choice is the yellow Job Shack holding tank, in 250 and 350 gallons. For a permanent install, AK Industries septic holding tanks run from 300 to 1,500 gallons, and Norwesco underground water holding tanks from 2,000 to 5,025 gallons.

Gray Water Holding Tank Sizes

• Job Shack holding tank, above ground: 250 or 350 gallons, in yellow
• AK Industries septic holding tank, single compartment, IAPMO certified: 300, 500, 750, 1,000, 1,300 and 1,500 gallons, each in standard duty or heavy duty
• Norwesco underground water holding tank: 2,000, 2,500, 2,600, 2,650, 3,525 and 5,025 gallons

Size the tank to the gray water you produce between pump-outs. Choose an above-ground Job Shack tank when the tank has to move with the job, and a buried AK Industries or Norwesco tank for a cabin or home that stays put. Norwesco listings show each tank's dimensions, and AK Industries listings show the lid sizes.

Pick Up Truck Tank

Our pickup truck tank for gray water is durable, UV-resistant, and fits most truck beds. Ideal for easy transport and disposal of non-potable water, it ensures efficient gray water management on the go.

Pillow Tanks

The pillow/bladder tank for gray water is a flexible, space-saving solution for storing and transporting non-potable water. Its lightweight, durable design ensures efficient gray water management for remote sites and temporary needs.

Plastic Transport Tank

The plastic transport tank is a versatile, lightweight solution for safely transporting water, chemicals, or other liquids. Durable and UV-resistant, it’s ideal for mobile use in agriculture, construction, or industrial applications.

Collapsible Gray Water Tanks

A collapsible pillow tank also works for gray water. Choose a Non-Potable Pillow Tank, set it on a flat, cleared surface, and check the maximum fill dimensions on the product page against your space.

• Berm Liner: To protect the tank and add a layer of spill protection, we recommend a berm liner or ground cloth under the tank as secondary containment.

Maintenance Tips for Longevity of Portable Gray Water Tanks

Proper maintenance of your portable gray water tank is crucial to ensure it remains in good condition and functions efficiently for years to come. Regular cleaning is the first and most important step. After each use, it’s advisable to rinse the tank thoroughly with clean water to remove any residual waste. If the tank has been in storage for an extended period, be sure to give it a good rinse before its next use. For more thorough cleaning, consider using a mild detergent or specialized tank cleaner, which can help eliminate any stubborn residues or odors.

Additionally, regularly inspect the tank for any signs of wear and tear, such as cracks, leaks, or damage to the fittings. Catching these issues early can prevent more serious problems down the line. It’s also important to store your gray water tank properly when it’s not in use. Keep it in a cool, dry place, out of direct sunlight, to avoid degradation of the materials. By following these simple maintenance tips, you can significantly extend the life of your portable gray water tank, ensuring that it remains a reliable part of your camping or RV setup.