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Which type of water is acceptable for human consumption?
What type of device is used to prevent cross-contamination of water supplies due to backflow?
How often should grease traps be pumped?
Which action would be least effective in preventing water in pipes from freezing?
What is the appropriate temperature range for eyewashes?
What is Victaulic (grooved-joint) piping?
What is used to prevent excessive water pressure?
What device mixes hot and cold water to a pre-set temperature?