Hello,I’m a new hot tub owner,I have followed instructions in manual and have my alkaline and pH levels within the recommended levels on the dipstick container.However,however much chlorine sanitiser I add,the following day it is showing minimum on the scale.The water is now rather cloudy as well.We have use the hot tub 3 times,showered with just water prior to using and swim wear has been rinsed in cold water in a sink and been allowed to dry naturally.Has any experienced user any explanation and possible correction able advise.