A very small hole can be cut into each side of the collar (make sure not to cut the filled AquaDam®!). The string lines that were attached to each corner of the AquaDam® that is being attached can now be used to make sure that it abuts firmly into the installed unit.  

The pumps can be inserted into the fill tubes and filling can begin on the newest AquaDam®.

The very bottom of the fill tubes can be tied off with string to help secure the fill hoses.

AquaDam®