A professional who tends blow pits that wash pulp to remove cooking acid. Respnsibilities include:

• Covers blow pit floor with specified amount of water, using hose, and clamps shut doors and hatches to prepare blow pit for receiving cooked pulp.
• Turns wheel, as signaled by digester operator, to open digester outlet valve and blow cooked pulp under pressure into blow pit.
• Opens valve to drain spent cooking liquor and water from pulp in blow pit.
• Opens water faucet or sprays pulp with water from high-pressure hose to wash cooking liquor from pulp and flush pulp from blow pit into receiving chests.
• Dips pulp sample from pit for testing in laboratory.