Forsta Filters worked with the City of Carlsbad to replace a failed secondary effluent filtration system. See the full article:

FORSTA SOLVES DIFFICULT SECONDARY EFFLUENT FILTRATON PROBLEM FOR CITY OF CARSLBAD, CA RESTORES WATER RECYCLING SYSTEM FOR PRODUCTION OF NON-POTABLE WATER FOR IRRIGATION

Project Manager with successful full-scale secondary effluent filters.