We have the Reviver of Osmo also used and allow him the instructions to act accordingly. Since we have quite a large terrace, we have given a ratio of 1: 5 dilution. The result does not convince me. At the places where the wood was still in pretty good shape, it has a bit of what brought. Because where the wood was, however, exposed to the sun and in accordance with gray, not much has happened. Probably we would have to raise the Reviver undiluted, which would then have been a few liters.