I have an idea that might sort out the bonding installation, can I just run it past you for your comments?
The pool construction consists of a double brick wall reinforced at the base and about two thirds of the way up by horizontal re-bar and concrete "collars" all around, in addition to this, between the two walls vertical re-bars are installed within concrete, spaced at half metre intervals, attached to these are re-bars protruding outwards at right angles by approximately half a metre to reinforce a concrete walkway around the outside of the pool (no decking) there is also a web construction of re-bars within the concrete base of the pool. All of the re-bars around the wall and walkway are wire tied together, The steps are of concrete and brick (also tied into the re-bar system) so a ladder will not be required, however I was planning to install a handrail along the side of the steps, I was planning to use a plastic material however if the vertical tubes or at least one of them was of stainless steel, as it would be permanently wet this could then be attached via a copper cable (8awg) to the vertical re-bars. The ends of the vertical re-bars I have cut off flush with the wall awaiting the topping stones, if I can drill and tap into the end of the bar and insert a means of holding the copper wire in place in several places around the top of the wall, this will give me a continuous copper run attached to the re-bar cage and to the handrail tube, from this run a copper wire over to the pump room for motor connection. Topping stones will cover the wire around the top of the wall.
Does this sound feasible?