Catty1

We had a reverse osmosis system at our last house. It was no trouble after it was installed. Just had to change the filter on schedule. It was not cheap, but unfortunately a requirement for our well water.

If the water is only for the cats, you could probably buy Aquafina and bring it upstairs yourself. Aquafina has been through reverse osmosis and you can get it in liter bottles in many stores.

Have you thought of Rescue Remedy to help alleviate the stress?

Good luck.