Our two year old softtub developed a small leak. The liner has lost its softness and is becoming faded. We have been using the household bleach as the chlorine and muriatic acid ( very small doses) to lower the PH. We do have the Taylor test kit and ensure that the water is in perfect balance constantly.
Our supplier says the liner should not have dteriorated like this. Is this the result of the household bleach or the muiriatic acid?