Some septic tank installation are straight forward and then there are all the others. The septic system plan called for a 2 compartment 1500 gallon septic tank with two steel covers to grade and the installation of a effluent filter. The first issue with this installation was a very steep front yard that made for difficult access to the back yard and the second issue was a large non-movable boulder was encountered while excavating the hole for the septic tank. Sometimes this can be an issue but this property had plenty of room for me to make an adjustment and move the tank about 10 feet. As you can see, we prevailed and we had yet another successful septic tank installation.