Waialua's septic tank installation experts

Gecko Enterprises is a sincere and dedicated company. A lot is put into keeping this business going, and there is still much to do to make it even greater. That is why we work hard for every customer we work with, from septic tank installations to pumping. Over the years, we have learned a great deal of information that has helped us understand what it takes to meet your needs, and we use this knowledge to better serve you every time.
Septic digging and tanks being buried
Septic pipes going deep into hole

Residential Services

Cesspool and Septic Pumping, 6 days a week:

• Septic Tank Cleaning
• Repairing & Installation     
• Sludge Removal
• Chemical Treatment
• Homebuyer's Septic
• Cesspool Inspection

Commercial and Industrial

Grease Trap Pumping & Cleaning:
  • Drain Line Cleaning

Sewage Plant Operations & Maintenance:
  • State Certified Operator–Grade 3
  • U.I.C. Status Reports & Engineer on Staff

Sewage Plant Operations & Maintenance:
  • Clogged Drains, Sump Pumps, Grease Traps & Septic Tanks
  • Video Camera Inspection
Septic Tanks & Systems Contractor:
  • Engineered & DOH Approved IWS Systems
  • Complete Design & Percolation Testing
  • U.I.C. Status Reports DOH

3,500-Gallon Tank Capacity

Maintenance Contracts Available
Bulldozer burying septic tank with gravel and dirt
Installation Services – Septic Tank Installations:
  •  Fiberglass Septic Tank
  •  Cement Septic Tank
  •  Preparing the Leach Field
  •  Installing Leach Field
  •  Infiltrator System
  •  Septic Tank Installation

We try to anticipate questions you might have about our products/services and provide the answers here. If you need additional information, send an email to

1.What is a Cesspool?
A private sewerage system consisting of a pit underground, usually constructed of 8” x 8” x 16” hollow tile with a re-enforced lid, where sewerage flows into and allows the waste water to leach through the sides of the pit leaving the sludge to be pumped regularly.
2.What is a Septic Tank?
A tank used to detain domestic wastes to allow the settling of solids prior to distribution to a leach field for soil absorption. Septic tanks are used when a sewer line is not available to carry them to a treatment plant. A settling tank in which settled sludge is in immediate contact with sewage flowing through the tank, and wherein solids are decomposed by anaerobic bacterial action.
3.Cesspools vs. Septic Tanks
A cesspool generally consists of a pipe, running from a house, which empties into a single component pit. This arrangement does not allow proper detention of solids or proper distribution of effluent. As a result, effluent overloads the capacity of the soil to remove harmful bacteria and viruses, to remove phosphorous, and to convert ammonia. A septic tank system, on the other hand, is comprised of: a building sewer; a septic tank, where solids can settle and both the solids and effluent begin to degrade; distribution lines, which prevent effluent from overloading the soil; a soil absorption system, which further treats the effluent by removing harmful bacteria, viruses, phosphorous, and nitrogen; and a reserve area.
4.Tips to keep your septic system running well:
• DO have your septic tank pumped by a private pumper every year.
• DO keep a record of all septic tank service and maintenance.
• DO find out where your septic tank and leachline are.
• DO conserve water.
• DON'T destroy an old failed leachline (it may be used again).
• DON'T allow anyone to drive, park or pave over any part of the septic tank system.      
• DO keep your septic system free from grease, paper towels, plastics, coffee grounds, cigarette butts, disposable diapers, paints, thinners, used  motor oil, antifreeze, weed killers, etc.
5.Septic Systems

The average cost of a septic system starts at approximately $20,000. That includes perk test, engineering, and installation. Some soils, like Haiku, have a lot of clay. It takes a long time for water to seep down through the clay, so more leach lines are required. The more leach line the system requires, the more it costs. The opposite is true in Hana. The soil mixed with cinders there allows water to run right through it.

Cost to pump a septic tank - starts at $200.00.
The appraisal on a property is greatly increased with an engineered and D.O.H. approved septic system.


    Each septic system is individually engineered for your lot. The number of bedrooms. the size and configuration of the lot, and perk rates are all used to determine final system design.

    The state will only allow one Individual Wastewater System (IWS) per 10,000 square foot lot. And, there can be only five bedrooms per IWS. The state determines wastewater flows based on the number of bedrooms in a dwelling. You can build on an existing lot that has less than 10,000 sf so long as it was in existence before state IWS rules became law in September of 1991. If you want more than five bedrooms, you must have 20,000 sf or more land. You would be required to install two septic systems. The state requires floor plans to be submitted for their review. An examination is made to determine that a "den, study, rumpus room, etc" cannot be readily converted into a bedroom.
  If you think you will be adding a two bedroom cottage to your three bedroom house, you may want to consider having the system designed to handle the additional flows.

 * New Federal E.P.A. rules and guidelines supercede State guidelines mentioned above.  The information has remained in report in order for reader to recognize the major changes which affect all cesspool owners in Hawaii today.
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