Gravity Septic Design In Silverdale

Gravity drainfield with serial distribution

Gravity drainfield with serial distribution

Another gravity septic design? You betcha! This gravity septic design in Silverdale is another example of our goal at Apex – to get you the least expensive septic system that is allowed by code. We often hear from our customers that they think that gravity septic systems aren’t allowed anymore; well that’s just not true. If the soil is deep enough for a gravity system, then that’s just what we want to design for you!

Old Poured-in-Place Septic Tank

Poured-in-place septic tank

Poured-in-place septic tank

We don’t often run across an old poured-in-place septic tank like this. This tank was made in the late 1940s by building concrete forms in the ground and pouring the concrete right in place. The lid is sections of concrete slab butted together. Opening these types of tanks is always a little dicey, since it’s easy to drop a lid section into the tank. That’s always the start of a bad day! This tank was pumped and decommissioned as part of a repair septic design in University Place.

Perk Test

Your septic designer hard at work

Your septic designer hard at work

Performing a perk test (these days it’s known as a preliminary soil analysis) means getting down into the soil to see what’s going on. Since we don’t actually pour water in the holes and watch the perk rate anymore, getting down in the holes and inspecting the soil strata is necessary to see the soil looks like. Soil color is a big indicator of water levels, and we’re always trying to stay above the winter water table level.

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