Simple to use Portable Envirovalve Drain Bladders

The portable envirovalve bladders can be easily operated in four simple steps:

Step 1	Step 2	Step 3	Step 4
Using the lance and holder, insert the bladder into the pipe	Pump up the bladder until it is not possible to pump further	Remove the lance, release the pump and move to next bladder	Bladder is now blocking the drain