What does Dgal mean on utility bill under water usage?

What is the time period of A yellow raft on blue water? How do you read the meter on a rowing machine? Can a regular pool pump be used on a intex pool? What is the longest standing 100m record? What is the difference between freestyle and back stroke in swimming? What happens when the alkilinity is too low in a swimming pool? What uses the soft power feature? Surfing in Hawaii? How do you measure a free-form pool liner? When do warilla pools open? Can a twister xb go through water? What does a skill level 6 mean in APA pool? What class can a 14 year old race? Skimmer open or closed to vacuum pool? What to do when alkalinity is 223 and Ph is 7.8? How much sand is required to install 20ft round pool? What is a water laden? What is another word for lake in Scotland? What are the Brown spots on my new concrete pool? How often do you need to replace the cell in a salt water system for swimming pools?