Check for any signs of damage, wear, or corrosion on the valve’s exterior, including the handle, body, and ports. Clean the valve’s exterior with a soft, dry cloth.
Check the valve’s mechanical components, including the handle, stem, and seals. Lubricate the moving parts as per the manufacturer’s recommendations.
Clean the valve’s interior and exterior with a soft, dry cloth to remove any dust, dirt, or debris.
Apply a small amount of lubricant to the valve stem and other moving parts to ensure smooth operation.
Source: MML TECH (Community Member)