As the pool is filling, immediately after plastering, add 1 gallon of muriatic acid directly to the water (don't splash it on the bare plaster) for each 5,000 gallons of fill water. With a watch, time the amount of time it takes to fill up a 1 gallon or 5 gallon bucket with the hose(s) used to fill up the pool.
Age RequirementsThe U.S. and Canadian governments have established minimum and maximum ages for airline pilots. A private pilot must be at least 17 years of age, a commercial pilot at least 18, and an applicant for an air/airline transport pilot certificate at least 21 in Canada and 23 in the United States.t the college/university level, preferred courses in preparation for an airline pilot career would include advanced math, English, sciences, aeronautical engineering, and other aviation-related studies.
You must be over 18 to work as an air cabin crew member, although some airlines set the minimum entry age at 21. There are also rules around height and weight, although this will vary between airlines, so check with them. As a general guide, many look for people between 5ft2in (157cm) and 6ft2in (188cm).ome airlines look for air cabin crew who can speak a second language and this is usually essential if you want to be based in an overseas location. Airlines often use a mixture of group and individual tests and interviews for recruiting staff.