Last year I bought a used compost tumbler & have been putting coffee grounds, left over kitchen waste, occasionally left over potting soil. I was finally able to mow 3 or 4 days ago before it started to rain again. This is bahalia grass. Can I still add these clippings to my compost? This is ALOT of clippings because it was about an acre & the grass was THICK. How do I know when I've added too much?