Regarding: > WE ARE A WATER TREATMENT PLANT AND ARE >HAVING SHORTER THAN NORMAL FILTER BED >RUNS. HAVE FOUND ULOTHRIX IN OUR RAW WATER. >LOOKING FOR INFO ON SAME. Ulothrix is a filamentous green clean water algae. If you get a lot of it will clog your filters. Check the reservoir. You may want to treat the reservoir with copper sulfate. I know that it is done in some water systems in GA. Paul