When I bought Paris my pregnant robo, I also bought a Lixit water bottle. The problem was that I only bought one bottle and it works so good. So I thought I would order more so I didn't have to drive back to the pet store in a different city, just over an hour away.
So the 4 Lixit bottles arrived from a seller on ebay and I was very disappointed in the quality of the bottles and am going to return them if I can.
I have to have back up bottles, so I drove back to that pet store in another city and tested about 10 bottles in a bucket of water they gave me. I found 6 out of the 10 that were very good so I purchased them for $1.99 ea, which is super cheap, they were all 4 oz bottles.
I did buy an 8 oz bottle in case ever needed since the bottle worked so well. And a little chew toy for Heaven. So today was another road trip back to that pet store. The city I live in has terrible bottles if any bottles in their store at all. So it was well worth the trip and peace of mind to have good back up bottles. I think that i'll give them all the new bottles after I clean them tonight. They will all have Lixit bottles now. I am sooo happy! (2 of them already have Lixit bottles already)