First off, it is very durable, does not leak, and has 2 well thought out locations for the water fill and drain connections. It is made of PVC, so the plasticizer chemical embedded in PVC polymer would render the water unpotable for drinking. But there are many uses for water, and this provides a way to store and dispense a good amount of water for a reasonable price. Water for washing purposes, refilling those solar heated camp shower bags , or flushing toilets during a water outage, or refilling a radiator in an emergency situation in a desert, etc.Suggestions:The fill port should be either sized to accept a standard garden hose fitting, or include an adapter to this size.To use it, it needs to be elevated at least higher than a bucket, and have some wheels to move it around.I know you could simply put it (empty) into a pickup drug or agricultural wagon and then fill it up. But this then ties up your truck bed until you drain it, and it would require a special location pretty much on the tailgate, which is not the best idea. Offering a little option wagon for the bladder might be a good idea. Have it sized to just hold the bag securely, 2 feet in the air, and wheels sufficient to the task.But the main thing is to provide a secure, leak free attachment to the top of the bag to fill it with water.Cheers! :)