About Glycol Recirculation Pump questions Howdy I came across your response to a similar situation and wanted to brainstorm with you if you can. I am installing a new glycol chiller today. My engineer and I are disagreeing on if we need to add in a loop or not. The chiller is 100% self contained with a 40 gallon resevoir and one pump. our glycol run is at most 60 feet to two 10bbl FV and our HX. He is wanting to put in a solinoid valve connected to the in and out on the chiller to bypass the run and loop the resevoir when no tanks are calling for cooling. I'm concerned that it will not have enough positive effect on the chiller as compared to the possible effects of the solenoid failing when we aren't looking. What do you think?