Thankyou so much for all the advice , i shall atempt to jet it off as the toilets are too small for a rotary scrubber.
all changing rooms have drains in the floor so they will be fine.
Just the sheer amount of rooms and walk ways done with this flooring is a bit of a daunting task, but i will battle through.
will not attempt the pool area with chemicals other than on sight ones, as i don,t fancy gassing the guests.
Will let you know how things work out.
thanks once again lisa.