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.
Some coolers have a âbleed-off valveâ to drain a. p o r tion of the re c i r culating water to prevent exces-. sive mineral buildup on the porous pads. Bleed-off. water can increase overall evaporative cooler water. use by 50% or more, which would increase total. evaporative cooler water use to 4,470 gallons per.