No. If by water therapy you mean excercise in the swimming pool, there is no risk for renal failure. As a matter of fact, this kind of therapy helps to increase urine output and decreases edema in patients who have leg swelling.
Water Therapy. Exercising in water is considered beneficial to patients with chronic renal failure. Is this the kind of water therapy you are referring to? Alternatively, taking in excess water - another form of water therapy - can overtax your kidneys and this is not good. Go here and read: http://www. Livestrong. Com/article/448446-can-drinking-too-much-water-hurt-your-kidneys/.