Temperature of water for ultrasonic RCM

I have a CleanerVinyl RCM - very happy with it. Have been fooling around with water temp and wondering if anyone else is doing or has done the same? I had been using it with the water at room temp, and was thinking that I was the dishes in warm water, so why not clean my records in warm water? So I pumped it to 40C and it seems to be getting a LOT more junk off my (supposedly) clean records that have all been previously run thru the RCM.

Thanks for any feedback.