A simple solution to walking the dogs in an area with no water points.Basically two soda bottles one cut,in half lengthways.It then clips over the other.I sewed up a simple carrier and hey presto the dogs get that much needed drink of water on their walk.
So all you need is:
two 2 liter bottles
a cutter knife
some webbing
a quick release buckle
a sewing machine and about 20 minutes
Do It And How 
I made a dog bowl out of plastic freezer bag! Check it out: http://www.inspireandrun.com/#/dogs/4565498788