After with winter of 2022 I found a quarter sized spot of anit-freeze on my garage floor that I can see came from a the ½” rubber 90 degree “to air” elbow right under the heater core box area. I assume this elbow is to prevent moisture in the heater core plastic “box”. So I pressured tested the coolant system with fine results, celebrated with an adult beverage, changed the fluid and dismissed it. But just now i found another spot, again seeing the rubber elbows inside is wet with coolant. So I again pressure tested 16 lbs and it’s shows zero loss over 24 hrs. I must have a very slight coolant leak of the core or a hose only under heavy load, right? My coolant changes are by the book with acura fluid and the required burping. Anyone have this happen? Comments greatly appreciated as usual. Thanks!