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Yes. A metal detector is one of the quickest and easiest ways to find your septic tank. However, metal detectors can be too expensive (costing upward of $300 in some cases), and not everyone has a metal detector just lying around. If that’s the case for you, you can also take a long metal rod and poke it into the ground at regular intervals until you hit something—likely your septic tank lid.

Directional drilling is complex and requires training to use the advanced machinery. It can be challenging to monitor the position of the drill since there’s no direct line of sight. Directional drilling can also be more expensive with a cost of $10 to $30 per linear foot compared to $5 to $12 per linear foot for trenching. 

It all depends on the scope of the project. A trencher can certainly save time and energy, but you might not need to dig that deep in the first place. Aside from the depth of the trench, the quality of the soil matters. If it’s light, soft soil, you might try a shovel first. However, if the soil is rocky and hard or there are obstructions in it, like tree roots, a machine trencher might be the better option.

Trenching is not the same as boring. Boring uses a drill to make a tunnel for underground utilities, but trenching involves digging with an excavator, trencher, backhoe, or shovel. Boring is more precise and expensive, and it’s best for installing utilities underneath buildings, roads, and bodies of water. Trenching is simpler but can cause more disruption to landscaping and ecosystems.