Performing the leak test 3-31
Resolving leak problems
To resolve leak problems:
1. Inspect all fittings, tubing, and the vent valve rotor.
2. If leaks cannot be resolved by checking fittings and tubing, inspect the
check valves and pump seals.
3. If both the right and left heads of either pump A or B fail with about the
same decay rate, the leak is likely in the areas that are common to both
pump heads, such as:
• Tubing between the outlet check valve and vent valve
• Fittings between the outlet check valve and vent valve
• Vent valve rotor