We used 1 gallon milk jugs. Cheap, disposable and though you want them clean of course there is no chance of residue hurting the pool chemical levels as there would be with soaps. Though soap bottles will work, as well as bleach bottles and they are sturdier than milk jugs, but I find the handles less cormfortable. You can adjust the resistence of the bottles by addingw ater for less resistence. Ideally you need identical bottles.
Some exercises we did:
Take one in each hand and push the straight down your sides
Put you hands in front of you and press them down
Squat in the water so it's chin level and do bicep curls under the water
Tricepkick backs kind of the same way under water
There we lots more but I can't remember
For the abs
Put one in each had with your arms out to each side so you can float on your back with your legs extendedstriaght out. Tuck your legscurl forward and pivot on your arms so you are now floating on your stomach with you legs stretched behind you. Then reverse
In the same starting position kind of float on you back with you head up so you can see your toes and open and close your legs...great for legs and abs.
The trick with the abs is to focus on those muscles and don't allow you momentum to move you, you really have to concentrate on what muscles you want moving you..alot like pilates.
Andrea I sent you a PM about the weighted belts. Ideally they are to be used in pools with no deep area. I can see how they may bennefit instructors. When I taught swimming I had to run back and forth with my kids and your natural bouyancy keeps you kind of bobbing, with a weighted belt like that it would have been easier to remain stable in the water.
If you are water walking in a variable depth pool I recommend something like this :
http://www.kiefer.com/Kiefer/product...2E064DFAE5176E
Also for resistence many woman at the pool where I worked at used these
http://www.kiefer.com/Kiefer/product...2E064DFAE5176E I needed far more resitence than they allowed, but if you are just starting out they may be helpful.