Formula D-220 - Bacteria supplement for reducing grease and sulfides in sewers and lift stations

Sewer grease from homes, restaurants, and other commercial and industrial facilities accumulates in wastewater collection systems. It can reduce flow capacity, generate foul odors, and cause dangerous, untimely, and expensive sanitary sewer overflows.

Formula D-220 contains grease-eating bacteria that break down and consume grease, fats, and oils in collection systems. This concentrated blend of harmless microbes reduces grease accumulation by forming a biofilm on the wall of the pipe which reduces grease buildup and improves flow even in low oxygen conditions. It also helps control noxious odors by reducing hydrogen sulfide.

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Formula D-220 Features

  • Industrial strength dry bacteria formulation

  • Biodegradable

  • Environmentally friendly

  • It contains surface tension depressants, micronutrients, growth stimulants, broad spectrum enzyme systems, and penetrants in addition to microorganisms

  • Specially formulated range of high-performance microorganisms for the biological treatment of FOG and other organic substances

  • Lives and reproduces in an environment containing no “free” or dissolved oxygen

  • Packaged in convenient, ready-to-use 1/2-lb water-soluble bags

  • Available in 25-lb pail (Product# 144825)

Formula D-220 Benefits

  • Significantly reduces FOG build-up in sewer lines and lift stations

  • Dramatically reduces line blockages and improves flow

  • Works effectively under low-oxygen conditions

  • Provides for efficient and cost-effective maintenance and clean out

  • Reduces grease build-up in sewer lines and lift stations

  • Enhances BOD/COD/TSS removal

  • Decreases the organic materials responsible for foul odors

  • Reduces hydrogen sulfide

  • Improves system efficiency

Using Formula D-220

Dosing Schedule:
Flow Rate Initial Dosage Maintenance
Up to 1,000 GPD ½ lb. per day for 3 days ½ lb. per week
Up to 5,000 GPD ½ lb. per day for 3 days 1 lb. per week
Up to 20,000 GPD 5 lbs.* 1 ½ lb. per week
Up to 50,000 GPD 8 lbs.* 2 lb. per week
Up to 250,000 GPD 15 lbs.* ¼lb. per day
Up to 500,00 GPD 25 lbs.* ½lb. per day
Up to 1 MGD 50 lbs.* 1 lb. per day
Up to 5 MGD 50 lbs. per MGD* 1 lb. per MGD per day
Up to 12 MGD 50 lbs. per MGD* ¾ lb. per MGD per day
Up to 100 MGDD 30 lbs. per MGD* ½ lb. per MGD per day
* Spread this initial dosage out over the course of 10 days.

* * Add as regularly as possible. If it is required to miss one day, add that day’s product with the next dosage.

Dosage rate will vary with flow rates, retention times and system variations.

Do not add to the treatment system at a location where toxic or otherwise adverse pH, dissolved oxygen or temperature conditions may exist at peak levels.

For optimal results the wastewater and treatment system should meet the following conditions:
Optimum Minimum
Influent pH 7.0 5.0
Dissolved oxygen, ppm 2.0+ 1.0+
C/N/P ratio 100/10/1 100/5/1
Temperature 30°C (86°F) 10°C (50°F)
Toxic metals, ppm
(E.g., hex., chromium)
0 0

Storage and Handling:

Storage: Store in a cool, dry place.

Handling: Wash hands thoroughly with warm, soapy water after handling.

See label and SDS for safety information.

(800) 314-3862