3701-31-04 (B)(1)(c) / Minimum disinfection residual shall be maintained as required.
Critical Observed free chlorine levels at 0.

3701-31-04 (B)(6)(h) / Required meters and gauges maintained/functional
Observed Pressure gauge on top of filter malfunctioning..
Maintain all meters and gauges in a properly functioning manner at all times while the pool is in operation.
3701-31-04 (C)(2) / pH is within 7.2 to 7.8
pH was outside the range of 7.2 to 7.8 at 7.0.
Treat the pool water so that the pH is within the acceptable range.