The large outdoor pool was situated in the garden of a large house in Bicester, as you can see it was surrounded by large Indian Sandstone flagstones which had become soiled with dirt.
Indian Sandstone Swimming Pool Surround Before
I was not allowed to use any chemicals as the client had dogs and so it was cleaned with Diesel powered high pressure washer.
Indian Sandstone Swimming Pool Surround after cleaning
Source: Swimming Pool Tile Surround Cleaning service in the Oxfordshire