Cleaning Report For Next-On-Duty

(There are some notes hand-written in the "Comments" column of the report.)

March 25th
There were some kind of barnacles sticking to the bottom of the pool.
Didn't know where they came from.
Please take care of them.

March 30th
The barnacles are back again.
Looks like they are all grouping together into a little colony.
Maybe they are a new species?
Might be fun to keep some as a pet.

April 10th
Looks like the pipe that distributes the water was damaged.
It was fixed, but there's a chance there was some contamination on this end.
The guy in charge of security wasn't very happy.
Maybe it has something to do with that new species of barnacle?

April 12th
Yikes. That's no new species of barnacle, that's for sure.

(The report ends here.)