We are well into a several year's long draught here in Texas. (Extreme draught in this area) but this is the worst year in decades. Our well is 125 feet deep. The pump was replaced about five years ago. We have plenty of water for household use and great shower pressure at night, but, if we attempt to water the grass around the house with even one little circle style sprinkler, the pressure drops off to almost nil within 20 minutes or so. When I first turn the sprinkler on it will water a circle of about 15 feet, then will drop off to barely three feet. If I turn off the sprinkler, pressure will slowly rebuild and be back to normal after several minutes.
I talked to our local well guy two years ago when we were going through the same thing. He said most likely it is simply a slow recharge at our pump due to the lower water table. To my understanding, when they sink a well, they blow out a pool way down there and that pool is the source of the water that the pump picks up. He said that they could try blowing that pool out again because it might have filled up with sediment, OR he said they could go down another 100 feet or so, which would run about $10 thousand dollars.
Now my neighbor, whose house is about 75 yards away, waters with at least two sprinklers nearly every day. He has great pressure all the time. He said his well is also at 125 feet. (Same company put in all the wells around here. Probably most of the wells in the county.) The well guy explains this disparity as being an issue with the rock down there and how the underground water table flows. Pockets of water. That sort of thing. He either has a naturally better recharge rate, or a larger 'pool' down there, or both. The neighbor waters, probably an acre and a half around his house. We just want to keep a wee bit green grass immediately next to the house, if for nothing else than due to the fire dangers we are having.
In a worst case scenario we could always hook back up to the community water system but I hate to do that.
Any suggestions, thoughts, guidance, or education in how wells work is appreciated.
I talked to our local well guy two years ago when we were going through the same thing. He said most likely it is simply a slow recharge at our pump due to the lower water table. To my understanding, when they sink a well, they blow out a pool way down there and that pool is the source of the water that the pump picks up. He said that they could try blowing that pool out again because it might have filled up with sediment, OR he said they could go down another 100 feet or so, which would run about $10 thousand dollars.
Now my neighbor, whose house is about 75 yards away, waters with at least two sprinklers nearly every day. He has great pressure all the time. He said his well is also at 125 feet. (Same company put in all the wells around here. Probably most of the wells in the county.) The well guy explains this disparity as being an issue with the rock down there and how the underground water table flows. Pockets of water. That sort of thing. He either has a naturally better recharge rate, or a larger 'pool' down there, or both. The neighbor waters, probably an acre and a half around his house. We just want to keep a wee bit green grass immediately next to the house, if for nothing else than due to the fire dangers we are having.
In a worst case scenario we could always hook back up to the community water system but I hate to do that.
Any suggestions, thoughts, guidance, or education in how wells work is appreciated.