I just searched for 30 minutes on google and youtube and kept getting videos off the subject even when I put in "too high" or -lower. They always deal with the tank or if they deal with the bowl talk about too low a water level. The toilet bowl water level is slightly too high so that sometimes that hand touches it. It's not running and flushes OK. I have a Fluidmaster 400a universal fill valve. Could someone tell me what I should do with it or should I put something in the tank like a filled plastic bottle. I'd like to lower the bowl level for at least an inch maybe two. Thanks.