I recently needed to remove three olives from in-situ 22mm pipework. Not wishing to place undue stress on other joints I decided against the 'use a wrench to bash the backing nut' method and being too mean to buy a pukka removal tool I Macgyvered a loosely-fitting pipe 'clamp' from two bits of wood screwed together, placed another bit of wood against the pipe end, then used G-clamps to pull the two bits of wood together :-
That arrangement worked well to shift the olive to the pipe end. One olive could then be slid off by hand, but the other two needed a bit of gentle persuasion with water-pump pliers.
That arrangement worked well to shift the olive to the pipe end. One olive could then be slid off by hand, but the other two needed a bit of gentle persuasion with water-pump pliers.