This causes somewhat of a slip hazard. Check showers when groups are not in lab. For extract flow splatters all over the floor, rust spot. Cut a hole in the grates so it doesn't splatter. Suggested they learn it.
Right dust cover sticks to nozzle.
The new safety inspection checklist is still not available for use. Shorten sample nozzle. Told him to carry glassware with a bucket. Flush out tank and pipes with pure water at the end of each experiment. Told them that someone needs to be present when equipment is in use.