I purchased filter on 8-7-2011 and then the filter came, fit like a glove where old model was . I then turn on filter and added the DE as directed . When to my surprise out came Mr .DE . I took filter apart as I have done before,and tighted the bolts as directed . I winterized pool and filter and now after a long winters nap it is leaking again I even changed fingers to no advail. I am pissed ,time is money send me some .