With pump off, If you are isolating the pump by closing the intake and return valves before opening pump lid to clean or replace basket, then no significant air should be in the pump/ system that would need to be cleared, but you can always bleed the any air just to be safe. Make sure to put all valves back in normal operating positions before restarting pump.
Question, is there a need to release air from the DE filter after replacing the basket for this model?
With pump off, If you are isolating the pump by closing the intake and return valves before opening pump lid to clean or replace basket, then no significant air should be in the pump/ system that would need to be cleared, but you can always bleed the any air just to be safe. Make sure to put all valves back in normal operating positions before restarting pump.
Started late