Hey guys I need a little help. I used to mow this house for another mowing company and it seemed there was one spot that seemed to get a little softer each week until there was a 15x15 foot area that you couldn't drive a mower over. So we would just weedwacked it. Well now I'm on my own and got this same house as a weekly mowing account. Different owner. 2 weeks after new owner moves in the area seemed to be getting bigger. It went from say 15'x15' to 25'x40'. After 2 weeks of this I knock on the door and tell the wife. Knowing the history of the spot I'm thinking a leak in the irrigation line. They shut the system off and within 2 more weeks I'm able to mow the whole area again. Today I talked to the husband and he told me that he had his irrigation company come out and do a peruse test and they found no leak. That leaves it to me thinking its a small spring that formed in his front yard. It just doesn't make sense to me. He shuts the water off and now there is no soft spot at all. I'm thinking it has to be a leaky line. Anyone seen something like this before?