"worker like a slower version of a modern day dialysis machine"
I did find this online which is kind of what I was talking about as far as standing up to the neck in water. I printed the excerpts below and a few other things I found. It even says this worked like a slower version of a modern day dialysis machine which is really encouraging..the effects without the awfulness and stuff they make you do at the dialysis center and the restricted diet and the major risks. this and the incurables program and the the additional things I recommended to you make me feel that you have a good chance of beating this..please read this article. Also it seems you need to do it for an hour at a time.
http://pr.sv.net/aw/2007/march%202007/english/pages024.htm
T"he beneficial effects of immersion
Then kidney research workers in Bristol, not far from the town of Bath, first became interested in the effects of water immersion on the body when the US space programme used it to mimic the effects of weightlessness on astronauts. The effects of immersion were found to be quite dramatic, especially if the legs are low in the water and the temperature kept just above body heat. Gentle pressure pushes blood from the limbs into the chest region, and the walls of the heart respond by releasing a hormone that makes the kidneys work harder. Then the kidneys, as part of their recycling process, step up the removal of sodium, excess water, calcium and lead from the body.
Clearly this would have helped anyone suffering from fluid retention, excess sodium,
kidney stones or lead poisoning, all of which were very prevalent because of so much salted food, and the use of lead for water pipes and in pewter dishes and mugs. Current thinking is that immersion treatment probably also worked like a slower version of a modern-day dialysis machine, and so saved lives by considerably delaying kidney failure.
Immersion in water of the right temperature apparently also suppresses the production of an adrenaline-like hormone in the body, which is why a warm bath induces a feeling of relaxation. However, to get the full benefit of all these effects, the immersion must be done properly. Three hours is about right. You need to stand or dangle in the water up to your neck, toes down. With this treatment, it's the temperature and pressure that are important, not the quality or specific mineral content. The heart is made to work harder, but without raising blood pressure, so it is particularly good for those with high blood pressure, or who can't take various kinds of drugs. A subtle bonus is that if the mineral content is of the right kind, it will clear up skin and chest complaints as well.
That means water up to your neck is ideal (unless you have respiratory or heart problems, in which case the water level should not rise above your heart)..maybe you might have to work up to it..but you might try it to your neck and see how it goes (take cayenne with you if worried..it would stop a heart attack and take eucalyptus essential oil in the pool and breathe it is the breathing is difficult..open the bottle and inhale and take big breathes for a minute or so.
someone said this on a message board.---All they said was that if you are submerged in water up to the neck for an hour at a time, that the all-over-the-body pressure created by the water has all kinds of beneficial effects (better blood flow, better cardiac output, better renal and kidney functions, lower blood pressure, etc.) And that these effects were significant.
wow this sounds perfect for the kidney patient as they need all these things.
as far as sweating, I found this...."Submerged in water up to your neck, using weights, you can actually sweat in the water."