Lyme disease is diagnosed clinically based on symptoms, objective physical findings (such as EM, facial palsy, or arthritis), or a history of possible exposure to infected ticks, as well as serological blood tests. The EM rash is not always a bull's eye, i.e., it can be solid red.
Rule of Thumb for Changing Filters. The rule we have followed for 18 years in the filtration industry is to change filters every 6 to 12 months. Six months is almost always optimum, especially in commercial/office settings, and twelve months is as long as you want to go no matter what.
http://www.reverse-osmosis.water-pro.... for written instruction or visit us at http://www.water-pro.org .. Leave a comment or rating letting us know what you think. Thank you. Let Bill explain to you how often you should change the filters in your Reverse Osmosis Drinking Water System (RO).After you change your filters place a tag or note that will stay on your RO to help you remember when the filters were last changed.eave a comment or rating letting us know what you think. Thank you. Let Bill explain to you how often you should change the filters in your Reverse Osmosis Drinking Water System (RO). After you change your filters place a tag or note that will stay on your RO to help you remember when the filters were last changed.