I recently built a 15 gallon electric brew rig and have only used it twice so far. The problem I am running in to is that when I use my immersion chiller I have to hold it up above the heating element so that it isn’t sitting on top of it. I am just afraid of it screwing up the heating element. I was thinking of going to a counter flow chiller but was wondering 1. Is my concern unwarranted and can I just let the immersion chiller sink? 2. If I go the counter flow chiller route do I have to get a pump?