For drafting, what is the minimum water depth required?

For drafting, what is the minimum water depth required?

• A. 2 Feet
• B. 4 Feet
• C. 6 Feet
• D. 8 Feet

Answer: (B)

Drafting relies on keeping the pump’s suction intake submerged so water can be drawn without pulling air into the system. A minimum depth of four feet ensures the intake stays well below the surface where waves and splashing can’t uncover it and primes reliably. It also helps keep debris away from the intake by letting you position the strainer above the bottom while still staying submerged. If the water is shallower than four feet, air can be drawn into the pump and prime can be lost, degrading performance. Deeper water isn’t necessary for standard drafting and offers no real benefit beyond what four feet provides.

Drafting relies on keeping the pump’s suction intake submerged so water can be drawn without pulling air into the system. A minimum depth of four feet ensures the intake stays well below the surface where waves and splashing can’t uncover it and primes reliably. It also helps keep debris away from the intake by letting you position the strainer above the bottom while still staying submerged. If the water is shallower than four feet, air can be drawn into the pump and prime can be lost, degrading performance. Deeper water isn’t necessary for standard drafting and offers no real benefit beyond what four feet provides.