Having a swg and a ta of 80, there isn't any reason for the ph to get low. Possibly he is not studying the ph accurately. A swg is generally ph neutral. I by no means have to boost or lower the ph with a swg pool as soon as the ta is right.お店情報を見る アクセス方法を教えてください なんば駅（大阪メトロ）から56m �