Water around the house. in Landscaping and Lawn Care Posted July 23, 2009 so have you been using the sprinkler system even though there is lots of water all around the house? i would think a leak would be isolated to a relatively small area, with the grass more lush in that area. if your supply comes in the front, i wouldn't expect your backyard to be wet as a result of a leak in the supply line.My yard is fairly big, so I do need to use the sprinkler even with water around. The water is mainly in the front side of the house, not much in the back. And it seems like sporadic, today the ground seems to be dry. But some days it has been REALLY wet without any rain.