Customer stated: they had a leak under the kitchen sink. Tech notes: called out today to look at a leak under a kitchen sink. While on site I found that the tubular under the left side sink basin is leaking anytime a high volume of water is pushed down the drain. I found the rubber gasket on the left side tubular was screwed so tight that it had forced itself out of the thread and is not holding its seal. Resolution: replaced gasket in the tubular. After replacing I turned the water on and tested to find no further leaks or drips. Job notes: could not locate clean out. Job status complete.