Page 101 - Vessel Sanitation Program 2018 Operations Manual

VSP 2018 Operations Manual

Recommended manual sampling procedures—All samples
should be obtained from a location with the following qualities:
• At least 18 inches (45.7 cm) below the surface of the
water, and
• At water depth of between 3 and 4 feet (91.4 cm to
1.2 m) when available, and
• Between water inlets.

Manual readings must be recorded on a chart or log, retained for at
least 12 months, and available for review during inspections.

Repairs on malfunctioning HALOGEN analyzer-chart recorders
must be completed within 30 days of EQUIPMENT failure.

Provide an audible alarm in a continuously occupied watch station
(e.g., the engine control room) to indicate low and high free
HALOGEN and pH readings in each RWF.

6.3.2.2.4 Whirlpool and Spa Pool Probes (10)
For WHIRLPOOL SPAS and SPA POOLS, the analyzer probes
for dosing and recording systems must be capable of measuring
and recording levels up to 10 MG/L (10 ppm).

6.3.2.2.5 Analyzer-Chart Recorder (10)
The HALOGEN and PH analyzer-chart recorder must be properly
maintained and operated in accordance with the manufacturer’s
instructions.

A manual comparison test must be conducted before opening the
RWF to verify calibration for free HALOGEN residual and PH.
The analyzer reading must be within 0.2 MG/L (ppm) for free
HALOGEN and between pH 7.0–7.8.

For RWFs open longer than 24 hours, a manual comparison test
must be conducted every 24 hours.

6.3.2.2.6 Data Logger (10)
If an electronic data logger is used in lieu of a chart recorder, it
must have CERTIFIED DATA SECURITY FEATURES.

Manual comparison tests for free HALOGEN residual and pH
must be conducted before opening the RWF to verify calibration.
The analyzer reading must be within 0.2 MG/L (ppm) for free
HALOGEN and 0.2 for pH.

6.0 Recreational Water Facilities (RWFs); 72