Comments by "michael close" (@6226superhurricane) on "Seafoam--can't believe what it did to my engine episode 5--cylinder cleaning test using water!!" video.

when you add water it's supposed to a few squirts from a spray bottle when the motor is hot. you can repeat after the motor has heated again. the dribble you added was too much and once it cooled the cylinder wasn't doing anything from there on in.
1