Thats .1375" per day!! I wish I was somewhere close to that! Is that with no rain at all?? Or lost with the little spits of rain? I'm losing .50-.57 per day. It has not slowed or sped up...so I'm assuming its in the basin. I'm WAY down. I was at full pool during the spring...first time ever, now during this drought its really been hit hard. My thing is the loss has not changed at all. I'm like you, and have lost ALOT of surface area. I'm between 5-6' down from full. I keep thinking maybe it will stop or slow so I can narrow down where it is going. Glad you got something though. Maybe it will get your winter grasses going.