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.
Algae are a very common pool maintenance issue. If your water has a green color or visible growth can be seen on pool walls or floor you could have algae contamination. These microorganisms can quickly spread and within hours wreck your water chemistry, taking it from gloriously refreshing to ghastly yuck.