Paikka Cool Bowl For Dogs - Black/Large Dogs are not willing to drink warm water. Staying hydrated is important, especially during warm days. Cool water always helps through the hottest hours. The main problem is usually that the water stays cool just for a short while and as a pet owner, you probably aren't able to fill the bowl with fresh water every hour or so. The PAIKKA Cool Bowl keeps the water fresh and cool for hours and encourages pets to drink more to stay hydrated.