Patent ID: 9284742
Filing Date: 2016-03-15
CPC Classification: E04H,Y10T

Claim Text:
1. In a swimming pool application having a filtration system that utilizes a skim filter port having a vertical well, a horizontal opening extending from said vertical well, and an intake port that is accessible within the vertical well, a method for preventing water from gathering within said vertical well, said method comprising the steps of: providing an expandable port plug; inserting said expandable port plug into said intake port within said vertical well; providing an inflatable body having a threaded shaft that extends from said inflatable body, wherein said inflatable body expands when inflated; inserting said inflatable body into said vertical well, wherein said threaded shaft on said inflatable body engages said expandable port plug; rotating said inflatable body within said vertical well to expand said expandable port plug in said intake port; and inflating said inflatable body within said vertical well to fill most of said vertical well.