I was called to a residence to investigate a problem with a cat litter box. Upon investigation, I found that the half-inch PVC valve, which was indeed supplied by the filter itself, had cracked under the water pressure remedy. We will replace it with a brass bulb valve for more of a structured foundation and least point of leaking. We will additionally refund the client $500 for the destruction of the automatic cat litter box in the basement that no longer works. We apologize for the inconvenience and we appreciate you continuing to use Dormar. Thank you.