Chart found on Page 4 of Instructions For How to Properly Select a Fan or Blower. EXAMPLES: With 45 of suction pressure on the blower inlet and no discharge pressure on the blower discharge, the total static pressure = 50.3 inWG.
Symptoms and Signs. Early Lyme Disease. The disease starts after an infected tick expels its salivary gland and abdominal contents into the skin of a human. In about 60-70% of cases, a rash may develop at the site of the tick bite. This rash is most often circular with a clear edge, but oblong and other shaped rashes may occur as well in response to the tick bite. This rash is known as erythema migrans or EM. This rash usually starts about 3-30 days after the tick bite.
Stage 1 . In the majority of cases, the first sign of early Lyme disease is the appearance of a bull's-eye skin rash. It usually develops about 1 - 2 weeks after the bite, although it may appear as soon as 3 days, and as late as 1 month. In some cases, it is never detected.