Joint pain can be an early symptom of many different diseases. In rheumatoid arthritis, symptoms often develop slowly over a period of weeks or months. Fatigue and stiffness are usually early symptoms. Weight loss and a low-grade fever can also occur. Joint symptoms include: 1  Painful, swollen, tender, stiff joints.
Alkalinity Balance, pH up, pH down, Calcium Balance, Water Stabilizer, and clarifier are all swim-safe chemicals. Wait about 20 minutes, and you are free to swim. We suggest adding algaecide, Super Erace, and shock at night, after everyone is out of the pool. It is safe to swim again the next day.
If pool clarity problems began with an algae bloom, be sure to kill algae before clarifier treatment. This requires 10-30 ppm of chlorine, with a suitably low pH of around 7.2. Operate the filter 24 hours per day during treatment, or as long as possible each day and night to improve circulation and filtration.