I don't get much buildup on most of mine. But there is a patch crabgrass that holds moisture really well. I can actually hear it building up as I mow. I know the real solution is get rid of the crab grass but that is next years project. I hope this will help a little.Not sure why some peeps are having such a time with grass build up.
It has to be the differences of the grass and or soil.
Here is my deck before I cleaned it, and then after a few minutes of scrubbing with a soft brush.
I hope this performs better. It probably wont. I guess this mower has done pretty well so far. I have 16 hrs on it and this is the first time I have had to clean it out. I filled a 3 gallon bucket 2/3 full earlier today. I like to make things as easy as possible within reason. That's why i bought the x500. Mowing 4 acres with a box store husqvarna was killing me and the husqy.I sprayed my deck with dry graphite last time I cleaned it as per my dealers suggestion. The next time I cut the grass there was no build up, but barely any dry graphite left to see. The next cut after that I started to get some build up as I figured I would. I think it would work great as long as you sprayed it almost every second cut. The dry graphite spray I use was made by LPS.