When we had our pool installed 3 years ago, the installer forgot to put in the ladder until after the pool was finished. The sidewalks were all poured when he decided to install the ladder. As a result, the ladder is not hooked to the pool's electrical ground system. Now we are thinking about installing an SWG and we are worried that the salt will have an adverse effect on the ladder. There is NO way to dig up the sidewalk to run a wire from the ladder to the pump to ground it. Bleach went up .30 a gallon this year where we live, and we use lots. That is why we would like to convert. What would happen if we got the SWG without any changes to the ladder? Thanks. Dorie