We moved into our home nine months ago, and slowly the situation of runoff from other properties has led to a condition where the back yard is very marshy-like (your shoes would get muddy and it's a little stinky), up to 36-48 hours after the last rain. With rain every two to five days, I'm concerned with having great conditions for mosquito beds, not to mention damage to my homes foundation.
The marshy-like areas are directly against the house in the back that stretches half the foundation, along with the side of the house for a half the house, but isn't necessarily against the foundation. We had asked the drainage issue before taking ownership, but was told it wouldn't be an issue and it was designed to drain properly.
Anyway, this leads to my question. My home warranty/builder has told me they will do: "a light sanding of the area" and that "with the nearly daily rains the area is receiving patience is the key as we are unable to obtain the best results with the soggy conditions. Once this is completed you will be responsible for any further maintenance and corrections in the future." Will this help fix the issue? How much sand should I expect to need to put down?