Working Principle:
When you're having trouble with a clogged drain due to grease, sludge, or buildup, you'll need a drain bladder to clear stubborn clogs. A drain bladder is a special tool that solves the toughest clogs to get an unblocked drain in a clogged drain.

Referred to as blow bags by plumbers, unclog sink drain bladders act as heavy duty rubber inflatable balloons with a pressure sensitive release valve. To use a drain bladder, connect one end to a regular water pipe and insert the bladder into the clogged drain pipe at least 6 inches.

The drainage bladder is filled with water and closed to prevent any entry. Once this bladder is filled with water like a balloon, it reaches a pressure point and the outlet opens, pushing out a powerful stream of water, using its power to clear blockages and backflow. If the drain doesn't open completely, you can repeat the process until the clog is completely clear.

With a standard 3/4 inch standard hose threaded shut off valve, so you don't have to run back to the faucet switch and can turn on/off and control the volume of water at any time during the use of the bag for easy daily us.

Specification:
Adaptability: Fits 1" to 2" Drain Pipes
Inflation Pressure: 40-80 psi
Color: Black
Material: quality rubber