What is the required height of the potable water riser above the ground?

What is the required height of the potable water riser above the ground?

• A. 6-12 inches
• B. 12-18 inches
• C. 18-24 inches
• D. 24-30 inches

Answer: (B)

The main idea is to keep the potable water outlet high enough to stay clean and accessible, while not making it awkward to use. The required height range is 12–18 inches above the ground. This elevation helps prevent soil, mulch, or debris from entering the outlet during normal use and maintenance, and it keeps the spout reachable for hoses and fixtures without bending or crouching excessively. If it were much lower, contamination from soil or splash becomes more likely and maintenance access can be hindered. If it were higher, like 18–24 inches or more, it would be harder to connect hoses and could be more prone to damage from impact or weather. So 12–18 inches hits a practical balance for cleanliness and usability.

The main idea is to keep the potable water outlet high enough to stay clean and accessible, while not making it awkward to use. The required height range is 12–18 inches above the ground. This elevation helps prevent soil, mulch, or debris from entering the outlet during normal use and maintenance, and it keeps the spout reachable for hoses and fixtures without bending or crouching excessively. If it were much lower, contamination from soil or splash becomes more likely and maintenance access can be hindered. If it were higher, like 18–24 inches or more, it would be harder to connect hoses and could be more prone to damage from impact or weather. So 12–18 inches hits a practical balance for cleanliness and usability.