Thanks,
The information sounds good, but is way over my head at the moment. Someone told me that I might be able to use a transistor to boost the power going to the horn as it receives the small signal from the sensor. If a transistor would work, where in the diagram do you place it and what value of transistor, or type would I use?
Sorry, but I just joined the forum today and I am at kindergarden level as far as electronics.
As the water reduces the voltage, I need to get the voltage back up enough to blow the horn loud again and keep it loud.