Assuming it was the cleanser/sanitizer switcheroo that led to this is fine, but I would take one non brew day, and clean everything with a vengeance with PBW and Starsan. Especially now that you have had one(two?) infected batches. Some might even replace the plastic hoses soft parts, etc.
Good Luck! I've never had to dump a batch thus far(Lucky) but I have had one batch of overcarbed grenades(just as bad)