When grass is growing fast in the spring, do not mulch, let it blow out. Do not cut more than 1/3 of the height of the grass, do not cut damp grass, best after 2pm in afternoon’s, all mower’s will still accumulate some grass underneath, clean it out with a paint stick or putty knife, once in probably June when it stop’s growing so fast, start mulching again till leaves are mulched up, when grass is growing fast, I have been cutting it every. 3-4 day’s., I rinse out the bottom of my deck with a hose for 5 minutes, then run it for 5 minutes to dry it being storing till next cut, be certain to let it cool down for 20 minutes before rinsing underneath.
good luck.