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.
There are three causes of green pool water. The first is a lack of chlorine. Without chlorine the pool water will quickly start to grow algae and turn green. Water without chlorine, especially if it has an algae bloom, is unsafe to swim in, and can be a breeding ground for mosquitoes and other insects. The second thing that causes pool water to look green (or yellow) is pollen.
Hint: Having your pool water properly balanced will the shock to be more efficient. Then, you need to determine the color of the pool from the algae. If you salt water pool is light green or teal, then you should double shock your pool using standard calcium hypochlorite shock. Before shocking, itâs best to take a pool brush and brush the walls and floors of your pool.