Step 5 · Insert the Bladder into the Drain Pipe
With the drain open and the overflow blocked, carefully feed the bladder end of the hose into the drain pipe. Push the hose in, guiding the bladder past any initial bends. Continue feeding it until the bladder itself is at least 6 to 12 inches deep inside the pipe. This positioning is vital. It ensures the bladder is securely anchored within a straight section of the pipe, which will prevent the force of the water from ejecting it back out of the drain. The hose should be relatively straight behind the bladder, without any kinks.