I've installed a raw water wash down above the manual bilge pump on my 1095. It shares same water source with my raw water toilet. Unfortunately I did know the Aquor products when installing the wash down nozzle. I installed Scandvik transom shower instead.
I also know some options of nozzles availables in Spain, that's shouldn't be the hardest part, but I am with doubts of how to connect it in parallel with the cooling system of the outboards, to allow it to work normally and when stoping, do the flushing quickly.