Rain Water Recovery tank installation three

  With the concrete pour finished our submarine HMS Overflow (enlarge the pic to see the name on the “conning tower”) is in her final resting place. The rest of the level will be made up with sand previously extracted from the hole and this means that if we need to change the pipe layout into or out of the tank in future due to any problems with the sedum we can do this as they will be accessible in the sand.