asthenosphere. The asthenosphere is the ductile part of the earth just below the lithosphere, including the upper mantle. The asthenosphere is about 180 km thick.(Image courtesy of Massey University). Share this page: 1  Facebook. 2  Twitter.he asthenosphere is the ductile part of the earth just below the lithosphere, including the upper mantle. The asthenosphere is about 180 km thick. (Image courtesy of Massey University). Share this page: 1  Facebook. 2  Twitter.
Noun. 1. dirty pool-conduct that is unfair or unethical or unsportsmanlike. behavior, conduct, doings, behaviour-manner of acting or controlling yourself.1  Facebook.2  Twitter.. dirty pool-conduct that is unfair or unethical or unsportsmanlike. behavior, conduct, doings, behaviour-manner of acting or controlling yourself. 1  Facebook. 2  Twitter.
A low pH means that your pool is acidic. Acidic water can corrode metal fittings, filter systems, and especially heaters. The pH goes down with rain, so it is important to add pH Up periodically to maintain a level between 7.2 and 7.8. A pH that is too high or too low can also irritate your eyes.