Marie, I was told by the pool people that I have to use the oxygen based shock product because I have a vinyl liner. A friend of ours who has had a pool for years told me he only uses muriatic acid and liquid chlorine and never buys from a pool store, but he does not have a liner. Can I safely use muriatic acid and liquid chlorine all summer long to maintain a clear pool?
Do I not need to use the "oxygen shock", algaecide and the pucks at all?