Selecting a site tips:  Because a water filled container is heavy, it makes good sense to set up your water garden in its permanent location.  You may prefer to place it on garden ground rather than on a deck or patio:  the pool will have to be drained and scrubbed once a year, and there's always some chance of seepage.

As you evaluate possible sites, remember that it's important to provide planty of sunshine:   most aquatic plants need at least 6 hrs of full sun daily. 

Filling & planting tips:  Before placing the pot in it's permanent home, fill it with water, then clean out any debris that may be in the pot.  Drain and refill the pot and let it sit for a week before planting.  With the expeption of plants which simply float freely on the surface, aquatic plants must be potted before being placed in the pool.  Plastic pots are best, since they hold up.  Fill pots with garden loam and inch thick and top with sand to keep them from floating.

Submerge planted pots in the pool, usually positioning them so pot tops are 6" or more under water.  A few plants do best if only partially submerged.  To raise plant to the proper height, you will need to set up pedestals made from bricks or overturned plastic pots.