b. Remove two check valve washers (3) and antisiphon valve (4).
a. Inspect the tube nut and antisiphon valve for damage to threads. Replace as required.
b. Inspect check valve washers for damage. Replace as required.
a. Install two check valve washers (3) and antisiphon valve (4) on injection nozzle (5).
b. Install pump discharge tube (2) and tube nut (1).
END OF TASK