Hi Its an existing industrial problem. There is a chiller system and two separate Water Circulation loops are there for water flow. First: Piping of the Chiller ( Made of Copper), then Mild Steel Piping upto the storage vessel and the to plate heat exchanger (PHE). Second: Water Circulation loop ( made of SS 316 L) in the plant which passes through PHE for heat exchange. Check the attached images The water in the above two loops two not come in direct contact with each other. Both the loops have water circulating through them. Now I want to remove the PHE system and send the water directly from chiller storage to plant. The issues of using it are. 1. Contamination from Mild Steel and Copper pipe will spread in the whole plant. Now I want to know: Q1. Will the contamination will be really significant if I bypass the PHE. FYI the plant chilled water is used in the Vessel Jacket for Heat Exchange only. So its the issue of life of Jacket and will there be a considerable impact on it. Q2. Are the any filters available to avoid spreading of Contaminates beyond a certain point. Q3. Will replacing the Mild Steel Pipe by SS solve the issue. And is so will copper be a remaining issue. Looking forward for an early reply Thanks in Advance.