Has anyone had the Shark Floor Steamer? This is my third in 2 years. THey are only lasting me 4-6 months and that is using it once a week or less. I have someone come in and wash my floors for me and she got one when I got my first and she is still using hers. I have only used filtered water. What gives with the shark products. This steamer is quite light so that I can use it when I have to. THis just sucks!!!!! My last one died yesterday and only 5 months old.