I bought it new in spring '03, used it last season and so far, this season I noticed rust forming on the frame. I wash it off when I'm done using it. Is Lesco using a cheaper grade of stainless steel these days?? My old one (early '90's vintage) has no rust whatsoever! What gives??? I'm not too happy after spending nearly $300 on a product that is supposed to be rust resistant only to have it rust!