We also had leakage and went nuts! Could not find one at a hardware store near us either, then I got a brightan idea. WHEN we break down the reservoir I clean it with a a soft scracthinng pad, the homemade tule ones are best, then I soak it in a HOT vinegar solution about 45 seconds and after filling the reservoir with cold water I stretch it gently and place in the lids groove quickly and run a very slight stream of cold water over it, this seems to shrink it into place if you over stretched especially and place it on the reservoir closing quickly before it reaches its true temperature and kinks. Then u do not remove the lid unless it really needs cleaning. Believe me soaking the unit as a whole in 50/50 vinegar and water then draining and rinsing via that little hole is less irritating than fighting the O ring. Just fill it slowly with a low flow! Hope this helps others with this problem. We've had ours now about 7 years and no leaks.
Thank you for taking the time to share your experience, Sheila! We are glad to hear that your fountain and reservoir have served you and your pets well for many years! If you have any questions or concerns, please give us a call at 1-800-732-2677.
I have had this reservoir for our big dog fountain for about 7-8 years. The gasket shrunk and wouldn't fit within the first year. Unlike prior review though the gasket isn't needed with just common sense. You can go to home depot or so and find a gasket that will fit. Our just do what we have done all these years: fill the reservoir, close lid, carry it to the dish, tip it over and put it in. It doesn't leak and drains like normal only as more water needed in the bowl.
A manufacturer who sells a product that depends on a gasket to prevent leakage should be required to sell gaskets separately (single or multi-pack) and should not require the user of the product to purchase a complete reservoir. Also, a Petsafe customer service rep should not argue with an engineer with an MS degree that other causes of leakage are more common than gasket leakage and thus the replacement strategy is perfectly reasonable. Citing economics might be more convincing, although there seems to be no problem with offering a $2.50 plastic flow control kit as a replacement part. Why not a 3 pack of gaskets for a comparable price?