When would it be a bad idea to use hydrotherapy?

If you have any of the following conditions

Unstable cardiac condition- especially left ventricular failure
Recent medical instability after acute episode without medical clearance (MI, CVA, DVT, PE, Status Asthmaticus)
Unstable angina
Renal compromise
Uncontrolled blood pressure (high or low)
Seizures / poorly controlled epilepsy
Loss of consciousness / blackouts
Uncontrolled diabetes
Open wounds
Infectious conditions eg MRSA
Systemic illness with raised temperature
Chlorine allergy
Fear of water