500 Gallon Sphere-Pump/Dosing Tank (40785)

500 Gallon Sphere-Pump/Dosing Tank (40785)

Original Price: $644.99 (Save 20%)
Sale Price:
Part Number: N-40785  
Mfr. Part Number: 40785  
Capacity: 500 Gallons  
Dimensions: 64" dia. x 67"H  
Weight: 174 lbs.  
Ships From: CA, MN, OH, OK, WA  
USD Shipping: Calculate Shipping  
PDF Drawing: View Technical Drawing  
Manufacturer: Norwesco  
Material: Polyethylene  
Warranty: 3 Years  
Contact Us  

*****May Be Completely Drained & Left In The Ground Empty*****
*****No Water Required During Backfill*****

  • 20" Manway with watertight lid
  • Pump stand molded into the bottom

Preplumbing & Riser Extensions Not Included
  •   Rotationally molded, one-piece, seamless, watertight tank.
  •   Polyethylene is unaffected by soil chemicals, sewage gases.
  •   Polyethylene tanks will not rust or erode.
Height to the inlet 56"
Height to the outlet 53"
3 Year Manufacturers Warranty

Pick Up & Drop Ship Locations in:
  •   Hanford, California
  •   St. Bonifacius, Minnesota
  •   Lancaster, Ohio
  •   Shawnee, Oklahoma
  •   Washougal, Washington
Frequently Asked Septic Tank Questions:
  • 1. Can I install a septic tank under a driveway? No, installing the plastic septic tank under a driveway is not permitted and will void the warranty. Do not locate tanks beneath driveways or in the pathway of heavy or vehicular traffic areas.
  • 2. Is there a sand/gravel mixture recommended for bedding/backfill? Yes, the sand/gravel mixture, commonly called “pea gravel” mixture is recommended.
  • 3. Can I use a septic tank above ground? Underground plastic septic tanks are designed for below ground use only. Using the tanks above ground can result in deformation of the tank. It is far more cost-effective to utilize an above ground storage tank that is specifically designed for above ground use and applications.
  • 4. Can hot water be stored in plastic septic tanks? Do not subject the tank to water temperature higher than 100 deg F, polyethylene storage tanks have a maximum storage temperature of 120 deg F. Contents with a temperature in excess of 120 def F, even for a short period of time, can weaken the tank’s structural integrity and make it susceptible to deformation and failure.
  • 5. How do you access an underground plastic septic tanks? Each plastic septic tank comes equipped a manhole access hatches. In addition, risers can be added to the top of the tank providing ground level access. Without a riser you would need to dig up the soil above the manway to gain accessibility.
  • 6. Can I pick up a plastic septic tank nearby? In many cases yes. To pick up a plastic septic tank and save on freight, requires you placing your order. Upon being notified that the tank is ready for pick-up, Plastic-mart will provide you with a 6 digit trip # which allows you go and pick up your tank M-F 8:30 am - 2:30 pm. Plastic-mart and the local manufacturers appreciate the opportunity to provide local pick and the cooperation required for the process to be efficient.

Ship Notes: Class 300, add 35.00 drop ship / will call fee
Add Weight For Risers If Needed

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