The Solar Plane turns out quite large, so you can push the edge well below the rim of the pool edge. By blackening the Plane invites slightly better on as the blue-colored so that under the tarp can reach a temperature up to about 30 degrees C. Can be achieved by circulating the water thus a slight warming of the pool water. However, one must not expect all to large increases in temperature throughout. By Plane less chlorine and water purification is needed. The pollution is largely held in check. I would buy these plans again and again, because me this Plane also on the strength of her better like as the usual blue tarp that we had earlier. It is an integral material from her and therefore more robust.