greddy1 I bought the WP40's back in Feb of last year, when I first heard about them. 2 for me and 2 for a friend. Again in March I bought 2 more. One of my friends went out in about 9 months, got it replace and no more problem with that one. One of mines went out in about 10 months got that replace and no more problem. Also I bought 2 WP60's when they came out don't know when. I haven't had any problems with them. Long story short, the last time one went out a couple of weeks ago first-street made me the deal on the replacements. I think the replacement are built better than the first generation pumps. because I haven't had any problems with the replacements.