- Reaction score
- Portland, OR
I recently replaced my master bath toilet with a Toto Ultramax II 1.28 GPF (CST604CEFGAT40#01) with a Washlet+ S500E. Everything worked great for about 2 weeks, but for the past day or so the tank fills really slowly. It used to be done filling less than 30 seconds after flushing, now it takes several minutes. The refill/overflow tube seems to be flowing normally, and the washlet pressure didn't seem to change, so I don't think there's an issue with the water supply/pressure. The only change I made to the tank was to replace the flush lever with a different finish, otherwise it's exactly as shipped from the manufacturer. I can't seem to even tell where the water is coming from on the fill valve (tsu81.30-a) to see if there is something interfering with it. I looked for information on how to adjust it, and Toto makes it seem like this valve is not user serviceable. Anyone know how I can troubleshoot this? Do I need to replace the valve? It's only a couple weeks old at this point...