One hard part of coating the tank that you probably hadn't thought about was the knee pads. Not possible to do it without them, but my 74 year old body (in a few months it will be) had a devil of a time getting them on and off. They're tight elastic bands that slide up the legs, which was doable in spite of my stiff hips, knees, etc. But then taking them off afterwards, when they were wet with sweat, and my legs seemed swollen, and my shoulders felt broken, was the biggest difficulty. And they weren't too tight, because sometimes they would work down and I'd have to pull them up. I used to have some that strapped on, but could never keep them in place and the straps cut into my legs bad. I'd like to say one more time with the pads and never again, but I think I'll coat the upper part of the big tank one of these days. It doesn't leak, but the concrete is eroding from wave action. It needs to be protected somehow. Remember a few years ago some friends came and helped me patch it, but that didn't adhere very well. The water level in that tank won't be low enough for me to attempt coating it until at least May.
Meanwhile, next time I come back to the oasis, I'm going to start that rock and concrete diversion curb. I realize water coming down the arroyo that the tank is built into is probably getting under the tank, as well. Gonna have to do something about that eventually. I think I'll concrete a wider spillway. That should help. And on my list is fixing those two bad places on the road.
Not getting out in this hurricane to take wildlife pictures today. Tomorrow we'll be banding. Maybe I'll get some shots of that.
Interesting side-note: Yesterday when I was cleaning the very last few uncoated square feet of the tank in preparation for finishing today (an area I KNEW didn't leak), I found an old patch of something rubbery, that flaked off as I was cleaning. Underneath was a round hole about the size of a silver dollar (think bathtub drain here). That floor was, I thought, heavily reinforced and 4 inches think. Had I just patched the tank, like I did every year, and not coated the whole thing, I would never have discovered that hole. The reason the tank didn't leak when the water level was low had to have been because there's a void between the tank and bedrock that holds water when the tank is low. And when I pump water, some of that undoubtedly seeps back up through that hole. I've seen that happen in the walls before, so I know it happens. BUT, when the tank's water level is high, the void beneath overflows up and around the sides of the tank. So had I not persevered to the very end, I would have been whining that I patched that tank so good, how could it be leaking (like I did last year)? The only way it could leak this year is if something caves in where there's a hollow behind it. But that has never happened, so I don't think it will.