Moderate Release FOG Block

Controlled release grease treatment for drains, grease traps, and lift stations

Moderate Release FOG Block is a bacteria laden block designed to provide continuous biological treatment over approximately a 30-day period. Simple and easy to use, these blocks dissolve gradually releasing billions of beneficial bacteria into the lift station to digest FOG and maintain clean, free flowing systems. Ideal for high grease sewer applications as well as lift stations, wet wells and sumps.

Applications: Interceptors, Sewers, Pits, Drains, Sumps, Grease traps, Lift Stations, Reclamation systems, Holding tanks


Simple, easy to use – extended release block for continuous treatment eliminates the cost of daily or weekly treatments

Helps to save money by reducing the frequency of manual cleanouts, preventing blockages, and lowering grease disposal costs

Reduces malodors associated with organic waste and sludge

Digests grease to prevent problems further downstream

Tech Specs
Bacteria Count 5 Billion CFU per gram
Bacterial Type Non-pathogenic microbes
Color Green
Fragrance Characteristic
Gram Negatives Not present
pH 6 - 9.5
Temperature Range 20 - 40 Celsius
Warranty 2 Year
Storage Temperature 10 - 30 Celsius
Storage Humidity 30 - 60%
Directions for Use

Suspend block with rope into area to be treated, preferably in an area where there is movement, but not directly in the path of the influent or effluent flow. Replace as needed with new product (approximately every 30 – 45 days) and dose according to the flow rate below. Block sizes and dissolution rate will depend on water temperature, grease content, etc. (For 10, 20 and 30 lb dosing use multiple 10 lb blocks).

Flow Rate Block Size
Up to 40,000 gpd 2 lb
40,000-200,000 gpd 5 lb
200,000-500,000 gpd 10 lb
Greater than 500,000 gpd 20-30 lb

Contact your EnviroZyme representative to help decide on the appropriate block for your application. Block size and dissolution rate will depend on water temperature, grease content, volume, etc.

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