Tank access finish pics..

Here we have the final result for our finished tank access. We haven't cut the plywood yet to gain access to our tank yet, we are waiting till the concrete sets up before we attempt that. We finished the top with a mix of sand and cement to get a nice finish. As you can see from the detailed pictures, the water from the  roof flowing/dripping onto this area currently has been running off nicely. We gave this area a slope away from the house in case it did rain here. Otherwise it would slope into the house and potentially run into the rooms.

You can see where the water is running off the front edge by the trail of leaves left.