PEP WAS FOUNDED IN 1976 WHEN KENN LATZER, a master of entrepreneurship and ingenuity, recognized the potential market for using side stream filtration on cooling tower systems. Thus came the founding of the company. The concept was to pull a small percentage of the system volume through an independent filtration system and return the filtered water to the system. Over time the water in the system would be cleaned to a very high level. In addition, since the filtration system was side-stream, a much smaller system could be used and down time/backwash time would have no impact on the cooling system flow.