How frequently should a handler change a K-9's water?

Handlers should change a K-9's water at least once per day to ensure the health and well-being of the dog. Fresh, clean water is essential for hydration, especially for working dogs like K-9s who may be more active and have higher hydration needs compared to typical pets. Regularly changing the water prevents stagnation and minimizes the risk of bacteria growth, which can lead to health issues. Ensuring that K-9s have access to fresh water daily supports their overall performance, energy levels, and prevents dehydration, which can impair their ability to perform tasks effectively.

While less frequent changes may be suitable in some contexts, they do not adequately account for the daily hydration needs of a working dog. Additionally, changing the water only when it appears dirty can lead to neglecting proper hydration and could pose serious health risks.