| Sometimes a builder will show the two ends of the drain they intend on running and never actually connect it. Its a bad practice but it happens. If you find any tiling at one point you can run a garden hose in it for about 10 minutes or so and see if it actually drains or connects to this drywell you mentioned.
This will also check for non-builder errors such as it being kinked by something after it was laid in the ground such as any utilities, irrigation or anything else that went in the ground.
By different grass types... there are some thinner grasses that grow in overly wet areas. Some may be red-thread which you get from over-watering and some are natural grasses that thrive in extremely moist areas. These types are typically very thin-bladed and grow tightly packed. It may or may not indicate flooding in the area. You just need to take everything into account when surveying this. |