The PetroPuck, when used in the proper environment, practically eliminates remaining traces of oil.It works best when used in conjunction with a bulk oil removal system, such as an oil skimmer. In many cases, the pucks bring oil levels down to those deemed acceptable for discharge. The PetroPuckٙtablet treats 1000 gallons of fluid by releasing numerous bugsӔthat attack the fluid and consume the oil left after processing. After a month,theresult will be noticeable when testing water quality. Simply add one puck per 1000 gallon tank per month to tanks that have a constant flow, along with a teaspoon of nutrient (provided). The pucks time release non-toxic and non-pathogenic bacteria that will break down and consume the oil, leaving no hazardous by-products. The oils are reduced to carbon dioxide and water. Ideal conditions are 70-80 degrees water temperature and a 7.5 or neutral ph. The kit comes complete with ph testers, and nutrients. How it works: > 17387 Munn Road, Chagrin Falls, OH. 44023Phone: (800)358-SKIM, Fax: (440)543-7404Website: www.abanaki.com Email: [email protected] >