There is certainly nothing wrong with carrying a syringe for irrigation in your FAK though. SWE Nurse I agree with you about the negatives of carrying the additional weight of saline wash in the wilderness. That said, if you are okay with the weight and space, I believe those 30ml tubes I linked to would be a fine addition to a kit. Also I never said sterile saline was better, I think was o said was "probably about as good". Which does seem to agree with the above referenced material.