I just went through the same thing in Hawaii!. Nothing but loam and sand, and it's on a hill. The feral pigs opened up a channel up hill and it rained for weeks and then really steady for a day. I hadn't started on the pit for the septic tank, luckily. I ran canals around the back of my lot where the little stream was coming from, like 8 feet deep v shaped and 6-8 feet across, about 75 feet. I got my tank in, standard Norwesco 1,000 gallon. Luckily I hit heavy packed ash (it's all volcano products) just at the bottom level needed to set the tank. 1 cubic yard of masonry sand in the bottom, and I'm filling it now while I back fill with the sandy loam and pack it and fill it evenly as I go. You should dig a permanent ditch away from the tank that stops the saturation in the future. you'll be glad you did. And I recommend that masonry sand for any base/leveling. I takes up tight.
Thanks for watching our struggles 😂. We are on a slope as well and have plenty of wild hogs to destroy things. We will be digging a ditch along the upper property line also. Just one thing at a time I guess. Always seems to take much longer than we think. Slow and steady wins the race I guess
I just went through the same thing in Hawaii!. Nothing but loam and sand, and it's on a hill. The feral pigs opened up a channel up hill and it rained for weeks and then really steady for a day. I hadn't started on the pit for the septic tank, luckily. I ran canals around the back of my lot where the little stream was coming from, like 8 feet deep v shaped and 6-8 feet across, about 75 feet. I got my tank in, standard Norwesco 1,000 gallon. Luckily I hit heavy packed ash (it's all volcano products) just at the bottom level needed to set the tank. 1 cubic yard of masonry sand in the bottom, and I'm filling it now while I back fill with the sandy loam and pack it and fill it evenly as I go. You should dig a permanent ditch away from the tank that stops the saturation in the future. you'll be glad you did. And I recommend that masonry sand for any base/leveling. I takes up tight.
Thanks for watching our struggles 😂. We are on a slope as well and have plenty of wild hogs to destroy things. We will be digging a ditch along the upper property line also. Just one thing at a time I guess. Always seems to take much longer than we think. Slow and steady wins the race I guess