Dipper takes a job as an assistant lifeguard to be closer to Wendy. However, he is forced to work under the strict, rule-obsessed head lifeguard, Mr. Poolcheck .
The end credits cryptically feature the "Vigenère cipher" for the first time in the series. [S1E15] The Deep End
The intimidating antagonist of the episode who runs the pool like a drill sergeant. Dipper takes a job as an assistant lifeguard
The episode explores (Mabel giving up her "first kiss" to give Mermando CPR/oxygen) and the folly of obsession (Dipper’s pursuit of Wendy and Stan’s pursuit of the chair). The end credits cryptically feature the "Vigenère cipher"
Mabel meets Mermando , a boy trapped in the pool's filter section. She discovers he is actually a merman and vows to help him escape to the open ocean.
This episode introduces Mermando, who reappears in later episodes via Mabel’s scrapbook.
A lonely, Spanish-accented merman who was accidentally caught and placed in the pool.