In a nutshell: Why the alk lowering process works

[waterbear]

depends on a number of factors. Pools that develop a scum line tend to have more organics (from body oils, suntan lotion, etc.) and might have more of a tendency to foam in very soft water. Not really a major issue. Was just pointing out another reason to keep the water in the pool a bit 'hard'.

[CarlD]

depends on a number of factors. Pools that develop a scum line tend to have more organics (from body oils, suntan lotion, etc.) and might have more of a tendency to foam in very soft water. Not really a major issue. Was just pointing out another reason to keep the water in the pool a bit 'hard'.

Not to mention keeping your chlorine levels up, too! Chlorine metabolizes that stuff. Can't foam if it isn't there!