Well siphoning with the vacuum hose in to the yard goes faster than the fill hose.

The method is:
1) Remove bag from box.
2) Bundle up open end of bag
3) stick bag in the pool
4) stick hose in open end of bag and fill while still holding the opened end of the bag gartered up and above the water surface.
4.5) CAUTION THIS IS THE HARD PART Tare off a 5" strip of duct tape using only one hand (you didn't think a Texan could pull off something this technical without using duct tape did you).
5) When bag is full enough that the part you have bundled up around the hose starts to pull, take the hose out give the bag a spin, put a goose neck in the end of the bag and tape it closed.