I don’t have any experience or much knowledge about polyuria. Is there another vet or an emergency vet you can access? If not, try looking for online vet support. Sometimes there is no cost support available to at least point you in the direction of another vet. Is your vet able to give you an emergency vet referral? She doesn’t sound too worried if she feels that Moses will be okay until January.

As for the pellets, the vet may be trying to reduce the amount of liquid intake. Does Moses have a preference for certain foods? For example, Willy loves his fruit and would only eat fruit if he could. I chop up the greens and broccoli florets finely and ensure the fruit has a generous sprinkling over it to prevent selective eating.

Hopefully, you are able to find a vet to see Moses soon. You must be worried.