I have a large cement patio which in over the years has been painted with about five different layers of paint(why I don't know...). I would like to remove the paint but a few problems exist. One...The patio is surrounded by gardens. Is there any paint removing product which will strip the paint without harming the surrounding gardens? The home is located in a small town which has no sandblasting or pressure washing servives. What to do? What to do?