Yes, it is possible to add jets to an existing pool. Depending on the size and shape of the pool, jets can be added by either drilling holes through the tiled walls of the pool or by adding a jets wall insert. This is done by cutting an opening of the appropriate size and shape in the side of the pool, usually in the wall opposite the pump.

Most pools will use a minimum of 2 or 3 return jets, and install them in the deep end, shallow end, and any other area of the pool that provides balanced circulation to the water. Additionally, if the pool is designed with a swim out, step jets are usually installed on either side, to keep the water circulating around them.