The BLS does not have a separate category for assistant principals. According to Salary.com, as of March 2015, assistant principals in the 25th-75th percentile earned $69,591-$93,291 per year, with a median of $79,831.n order to become an assistant principal, your surest path is to accumulate teaching experience and then earn a master's degree in education leadership or education administration.
The last cause of green water in pool water is metals, usually copper, that have oxidized. Metals can be introduced through source water, from some cheap algaecides, or, if the water is acidic, from the metal components of the pool, most commonly from copper heater elements.
Stains from Pool Ionizers. Too much copper in the pool can turn your hair green, especially for blonde swimmers. Too much copper â from copper algaecide, ionizers, copper pipes or heat exchangers can also stain your plaster or white plastic surfaces. Removing heavy mineral staining can require an acid wash for plaster pools.