Dry ElementPet Water Drops - Dog and Cat Water Additive for Dental and Oral Care - Prevents Pets Water Bowl and Dispenser Fountain Slime - for Fresh Breath and Cleaner, Healthy Teeth

This product is one of the best product selling on Amazon. When use in water according to the instructions. The water will never get Algae. I use the water for my dog for almost 2 weeks without having to change water all the time. I used a 3 gallon water feeder for my dog and this product is Awesome. And I bought my second purchase from Amazon and will buy more when I need it.

Keeps from slime build up

I have a 2.5 gallon water dispenser that kept getting slimy.These drops actually work great! No more slime!

I was the biggest skeptic, but thought I would give it a try. My cats love it! I think they drink more water now than they did before. It keeps it from getting slimy for 2 full weeks! I've never been able to go that long in between cleanings. It's been hectic with holiday things, and I forgot about the fountain. I went to get it to clean it after about 2 week or 3, even, and my cat happened to be drinking, right when I went to get it, so I know the water was still fine and clean. When I scrubbed the inside of the fountain, it barely had a tiny bit of a slimy feeling. Not like before! I will will buy this stuff forever! :)

These drops are excellent to keep the water fountain dish free from slime and very clean however beware that your pet may not like the taste in the water. It does not have a smell however my cat refused to drink any water since I have been putting in these drops. I decided to experiment and I took a taste of water from a glass after putting a very small small drop in. It tasted very salty and the water was very soft. Now I understand why my cat refused to drink. I had to get her a different water fountain as she correlated the awful taste with that fountain.