How old to legally operate a pwc in California?

Is the failing of a septic drain field covered because of excessive water from under ground springs and or age? Is turtle float a skill in swimming? What is a kiddie pool? When did the kalinagos use canoes? Do manta rays swim in schools? How many laps are in a 500 meter speed skate race? Is it acceptable to drain your swimming pool and leave it empty during the winter season at the San Fernando Valley region of Los Angeles in California? Why is there no running water in the toilet? How far can tornadoes travel over water? Are there any suggestions to fix a water leak that pools up on the floor behind the drivers seat of a 1993 Nissan 240 SX? Do pulp mills use water? Mermaid Series I want to make a mermaid series. Any ideas on how the characters become mermaids because i dont want to copy H2O in a rock pool bubbling so please help? Can you fill in the deep end of a pool that is 10 feet deep and make it 5 feet deep? Who invented the surfing aerial? The differences between two types of fishing outfits? What inspired Tom Daley to become a diver? What state can you skydive at 11 years old? What household item can be used to lower pool Alkalinity? If you recently had your pool surface replaced with Pebble Tech and spent the first 30 days brushing it completely and cleaning your filter daily but still have the silt should you add a lot of acid? What is the object of rowing?