BA-28 which is a recommended water- skiin safety practice?

How many people are involved in scuba diving? Is pool water with a pH of 6.5 acidic or basic? Can a pool heat exchanger be repaired after freeze up? Does muriatic acid damage vinyl boat seats? What school did Stephanie Gilmore attend? Will cold water affect the plaster? How many litres in a pool? What do they throw from the floats on the 5 of January? How far and fast can a mermaid swim without getting tired no rude or they're not real answers please? To charge marine batteries do you need a special charger? What was Poseidon's favorite thing to do? It is possible to waterproof the basement walls? What coat is best put on wet? Can you put shock powder in salt pools? What are those circular shaped water bottles called? Do jet skis have to be tagged? What are the side effects of swimming in a pool daily? What percentage hydro is used in Kenya? Why are water aerobics less stress ful on the body's joints than regular aerobics? What does the vent on top of the parachute do?