We just had our Jandy Aquapure system set up last week and started getting a general fault error on Sunday afternoon related to the sensor. The PB came out and said the sensor was shot since it was full of water. We are working on having our irrigation system repaired after our build and have a head near the controls, but not aimed directly at it. Even still, are these sensors not waterproof at all? I'm not sure how it's an exposed element of the system if it's not waterproof. Does anyone know if these are waterproof? Thanks!