I used to run a hydro pool and though there was no specific policy regarding MRSA clients our first step was to seek medical clearance (ie: from GP) prior to attending hydro and from there observing standard infection control procedures. Patients with wounds weren't allowed in the pool without a suitable waterproof dressing in any case. Most times we would be extra cautious by either isolating the patient in the pool and/or ensuring that they were in the last session of the day.

Also, I haven't had the pleasure of having to deal with MRSA sputum but a CNC colleague suggested masking for patient and practitioner might take care of most droplets - might make clearance and/or collection a little tricky though...

Cheers, Ray