Last Spring/Summer was my first time growing with a TG. It was not as simple and easy as I had believed it would be.... I didn't get a lot of produce at all. My friends told me I needed to get an RV filter. I see various micron filtration including as small as 5 microns. I read another post with a suggestion of at least 100 microns - would 5 be even better? I don't want another year of frustrating results!