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Thomas N. Ott, PE Site Engineering · New Jersey
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Advanced Treatment Systems

SludgeHammer aerobic septic system design, plus other aerobic and alternative treatment for tight lots, high groundwater and failing fields.

When a conventional system isn’t enough

Advanced (aerobic or alternative) treatment adds oxygen and specialized bacteria ahead of the disposal field, so the effluent reaching the soil is much cleaner. That can make the difference on:

  • Small lots where a full-size conventional field won’t fit
  • High groundwater or shallow soils where separation distances are hard to meet
  • Failing fields clogged by biomat, where treatment can sometimes bring the field back

SludgeHammer aerobic systems

I design SludgeHammer aerobic treatment systems. A SludgeHammer unit sits inside the septic tank and uses an aerator and an introduced bacterial colony to break down sludge and treat the effluent before it reaches the field. It can be added to an existing tank as a retrofit or included in a new design, so it is often worth considering before you replace a failing field outright.

Each installation still needs a site-specific design and Board of Health approval. I handle the evaluation, the design and the submission.

Fixing systems that have stopped working

Many advanced units fail quietly. A blower dies, the bacterial colony collapses, and the system goes back to behaving like an ordinary anaerobic tank, while the field slowly clogs. Diagnosing that early can avoid a full replacement.

Read the case study: reviving a failing leach field in Passaic County →

Have a property question?

Call or email with the address and what you're trying to do. You'll get a straight answer on what's needed, the likely timeline and the cost.