PORT Septic Tank Treatment

Southland Organics PORT is a powerful liquid formula that provides rapid waste degradation and odor control for portable, vault, and pit-type toilets as well as RV and Marine holding tank applications.

PORT efficiently and effectively breaks down waste in tanks and clears bio-solids. In septic tanks with a drain field,

PORT breaks down solids and opens up drain lines, potentially adding years between septic tank pumpings.

Digests Difficult Compounds

Southland Organics Port contains a synergistic blend of new bacterial strains which have been scientifically developed (selectively adapted) to cope with difficult compounds and chemicals present in wastewater effluent. Unlike any other bio-formulation, Port contains bacterial strains that will digest difficult and non-biodegradable compounds such as detergents, paper, oil, grease, hydrocarbons, and phenols.

Amazing Odor Control

Southland Organics Port bio-formulation provides exceptional results controlling hydrogen sulfide and other mercaptan odors emitted from portable toilets and holding tanks. Our substrate is a new and novel, totally organic product that controls sulfide odors by blocking the pathways of sulfide-producing compounds. The product is also unique in that it contains micro- and macro-nutrients that accelerate microbial activity, growth and performance.

Safe for the Environment

Southland Organics Port is all natural and organic so it is very beneficial to the environment. 

Multiple Uses

It can dissolve grease and eliminate odors in grease traps, wastewater lift stations, and RV dump stations. When diluted 1:7 with water in a backpack sprayer, it can be used to solve any biological odor including garbage dumpsters, organic spills, and animal decomposition. For septic tanks with a drain field, we recommend 8 ounces of Port monthly in a 500-gallon septic tank for routine maintenance. For problematic systems, 1 gallon of Port monthly in a 500-gallon tank will resolve most issues within a couple of applications. Port can completely clear a clogged septic system drain field.


Click the link above to request our SDS Sheet for PORT

Looking for relevant articles? See our related blog posts below:

Eliminate Portable Toilet Odors

Odor Control in Portable Toilets 

Vault Toilets - A Step Up from the Pit 

Case Study: The Appalachian Trail Minimizing Moldering 

Landfill Odor Control | Foot and Mouth Burial Site 

The Campground Pit Toilet 

PORT Holding Tank Treatment  

Customer Reviews

Based on 5 reviews Write a review

Related Items

Product Benefits

Port - portable toilet odor eliminator is ideal for use in the following applications:

  • Portable Toilets
  • Porta Potty Applications
  • Marine Toilets
  • RV Toilets
  • Portable Restrooms
  • Holding Tanks
  • RV Tanks
  • RV Holding Tanks
  • RV Black Tanks
  • Portable Camping Toilets
  • Chemical Toilets
  • Marine Holding Tanks
  • Boat Holding Tanks
  • Pit and Vault Type Toilets
  • Maintenance and restoration of septic system drain fields

Application Rates

Vault Toilets

Optimally Port (diluted in water as specified below) should be added when the vault has been freshly pumped. The vault can then be left to fill to capacity without any additional product being needed. Additional water may be needed if solids begin to exceed the water line.

Vault Size Dosage Water to Add
3000 gallons 7 gallons PORT at least 49 gallons
2000 gallons 5 gallons PORT at least 35 gallons
1000 gallons 2.5 gallons PORT at least 17.5 gallons
500 gallons 1.25 gallons at least 9 gallons

Septic Tank Maintenance

Problematic Tanks1 gallon per 500 gallon tankEach Cycle
Normal Use8 ounces per 500 gallon tankEach Cycle

Product Documents


Customer Reviews

Based on 5 reviews Write a review
Customer Reviews
4.9 Based on 9 Reviews
Write a Review Ask a Question
  • Reviews
  • Questions

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
28 Mar 2021
Larry W.
United States United States
I recommend this product
Fantastic Product

Wonderful product, easy to use and great results would highly recommend.

08 Oct 2020
United States United States
I recommend this product
Port Septic Tank Treatment

We use this in our outhouse. It really helps reduce odor and keeps waste liquid, which is important because we have it pumped out.

02 Sep 2020
Milton W.
United States United States
I recommend this product
PORT RV holding tank cleaner.

Absolutely the best. Full time RV 5th wheel for over 4 yrs (eick!!!) while developing land/build house. Pump tank every Sunday 175’ to large holding tank. This is ONLY product that has been absolutely trouble free AND eliminated existing rv tank issue. Dont waste your $ on those perfume treatments... you’ll be sorry!!! (2 Dixie cups = 6-oz after each pumping)

02 Sep 2020
Southland Organics

Thank you Mr. Whitmore!