No, the system can be CIP'd using the left over hot water in the HLT. Simply add brewery wash to the HLT's water (we recommend 160F water) and run that through all hoses, pumps, HERMS coil, etc. Be sure to open and close the valves as well to thoroughly clean them. We have run many many brews through our test systems and when we've taken the system apart the internal parts are all squeaky clean.