No swimming pool shall be built, constructed, erected
or maintained nearer to the side lines than five feet on a thirty-foot-wide
lot and seven feet on a forty-foot-wide lot and, for all other lots
greater than 40 feet in width, nearer than 10 feet to the side lines
or rear line of the lot upon which it is located or closer to the
front line than the existing allowable setback of the main building.
On any corner lot, no swimming pool shall be built, constructed, erected
or maintained nearer the street line than the present allowable existing
distance for other structures thereon or allowable thereon.