A dial type thermometer shall be provided when a seal flush cooler is provided.Vent and drain connections from the mechanical seals shall be piped to a safe area.Pumps in water service shall be designed so that the water temperature at the sealface does not exceed 180°F (82°C).A non-sparking fixed throttle bushing shall be provided for Category 1 Arrangement1 seals.A non-sparking fixed throttle bushing shall be provided for Category 2 Arrangement1 and Arrangement 2 seals (when seal chamber dimensions permit).