I have never heard of a water temp sensor on the incoming coooling water, but I guess it could be possible.
When we were at Bullfrog in early May there was a doom and gloom NPS ranger who did our leaving water inspection. He told me that since we were taking our boat out of Utah they would not decontaminate her, which I sort of understand. Since he seemed talkative I asked him why were they making houseboats clean the hulls prior to relaunch if they were going back into contaminated water? He said it was because they were trying eliminate any dead mussels returning to the water where they would add to the decaying mussel problem, using Utah Lake's algae bloom problem last summer as an example. (I was pretty sure that Utah Lake was still considered not infected. I checked as we drove home and confirmed that the algae bloom problem at Utah Lake was caused by a combination of low, stagnate water and excessively high temperatures, not dead mussels). He then went on to say that houseboaters were going to face delays and excessive costs getting boats back in the water since all of Offshore's trailers were impounded and the only approved hauler was J&B. Since Offshore had just put our boat back in the water just a few weeks earlier I found his statement a little hard to believe. Has anybody ran into any problems getting their houseboats back in the water?
BTW
Over the past two years I have been very impressed with the proactive and accommodating attitude I have found at the Colorado state park lakes and Larimer County (CO) lakes when it comes to decontaminating boats. I try to do it during the week, and as soon as I can once I get back from Powell.