quadruple fugue: A fugue with four subjects. Quarter note: A note played for one quarter of the duration of a whole note. Quarter rest: A silence of the same duration as a quarter note. Quintal Harmony: Harmony based on the interval of a fifth, rather than thirds.
How To Treat Acid Well Water. On private water systems, one of the most common causes of pipe and fixture corrosion is from low pH, which can be defined as acidic water with a pH of less than 7.0 pH. Signs of acid water are corrosion of fixtures, blue staining (from copper pipes) or rust staining (from iron pipes).
Determine the pH level of your water. Before and after you alkalize your water, you should check to see what you waterâs pH level is. Doing this will tell you how much of an adjustment will need to be made to your water. Water is naturally a 7 on the scale, but impurities in the water tend to tip the scale toward the left (more acidic).