Cesspool to Septic Conversion in Volcano, HI

Replacing a cesspool with a permitted septic system, designed for your lava-rock lot and the state deadline. A straight walkthrough of options and cost before anything is dug.

Cesspool Conversion in Volcano

Hawaii has set a deadline for every cesspool in the state to be converted or closed, and nowhere does that land harder than East Hawaii, where whole subdivisions were built on cesspools drilled into the lava. A conversion means closing the pit and installing a permitted individual wastewater system in its place: typically a septic tank with a leach field or seepage bed, or an aerobic treatment unit where the lot is too small or too wet for a conventional field. We handle cesspool-to-septic conversions across Hilo, Puna and the Hamakua coast, from the site evaluation and the design that the Department of Health requires through the excavation, the tank and field installation, and the final inspection. Lava changes everything about this work. There is little or no soil, so most fields here are built on imported fill, and a lot that looks flat and easy may sit on a lava tube or on pahoehoe that will not break without a hammer. We look at your lot first, tell you which system actually fits it, and give you a real number before anything is dug.

Cesspool to Septic Conversion in Volcano, HI

Cesspool and septic service in Volcano

Volcano is the village at the top of Highway 11, just under 4,000 feet at the gate of Hawaii Volcanoes National Park, where the rainforest is thick with ohia and hapuu and the nights are cold enough for a fireplace. It is a village of artists, park staff and retirees, and it is one of the island’s vacation-rental capitals: the cottages and B&Bs along Old Volcano Road and in Volcano Golf Course, Mauna Loa Estates and Royal Hawaiian Estates fill up with park visitors week after week. There is no sewer. Every home and rental is on catchment and on a cesspool or a septic system, in rock that is young and in places layered with volcanic ash and cinder, under rain that falls most days of the year. Vacation rentals load a system in bursts a family never would, a two-bedroom cottage sleeping six on a holiday weekend and sitting empty the week after, and that pattern is the number one reason a Volcano cesspool backs up with guests in the house. Elevation adds its own twist: the ground is cold and wet, and a system that sits unused in a part-time home can surprise an owner who arrives for the season. We pump, inspect, convert and repair systems throughout Volcano and the subdivisions around it. Tell us the subdivision and what the system is doing and we will quote it straight.

  • Site evaluation and system recommendation for your lot and household
  • Design and Department of Health permit handled for you
  • Septic tank with leach field or seepage bed, or an aerobic treatment unit where needed
  • Raised beds on imported fill for lots with no native soil
  • Old cesspool pumped, closed and filled to code
  • Final inspection and the paperwork a buyer or lender asks for

Need cesspool conversion elsewhere? See all of our Volcano services or cesspool conversion across East Hawaii.

Cesspool Conversion in Volcano

Tell us what is happening and we will call you back. Local Volcano service.

Prefer to talk now? Call or text (808) 649-5223.

Areas We Cover in Volcano

In town or at the end of a cinder road: if it’s in or around Volcano, we come to your property.

  • Volcano Village
  • Old Volcano Road
  • Volcano Golf Course subdivision
  • Mauna Loa Estates
  • Royal Hawaiian Estates
  • Glenwood side

Common Cesspool & Septic Issues in Volcano

The cesspool and septic problems we see most around here, and how we handle them.

Vacation rentals that fill a pit in a weekend

A rental cottage that sleeps six on a holiday weekend puts a week of household flow into the cesspool in two days. Rentals here need pumping far more often than the owner’s own home would, and a backup with guests in the house is a bad review and a cleanup bill. We set rentals on a schedule tied to bookings.

Cold, wet ground at 4,000 feet

Volcano’s ground stays cold and saturated most of the year, and ash and cinder layers drain unevenly. Cesspools refill from the ground and sludge breaks down slowly in the cold. Regular pumping and an honest read of the refill rate keep a pit ahead of the weather.

Part-time homes that sit idle

Many Volcano homes are second homes used for a season. The pit sits idle, then takes a full house. We check and pump before the season starts and set a schedule based on how many weeks a year the home is actually loaded.

Cesspool Conversion in Volcano: FAQs

How often should a vacation rental in Volcano have its cesspool pumped?
More often than a family home, often every one to two years for a busy rental, because weekend occupancy loads the pit in bursts. We look at your booking pattern and the pit’s refill rate and set a schedule that keeps you ahead of a backup during a stay.
Do you cover Volcano Golf Course, Mauna Loa Estates and Royal Hawaiian Estates?
Yes. Volcano Village and all the subdivisions around it are the top of our Highway 11 route. Tell us the subdivision and the street and we will come prepared for the access and the weather.
Does the cold at this elevation affect a cesspool or septic system?
Somewhat. Breakdown in the pit or tank is slower in cold ground, so sludge builds faster than the same household would produce at sea level, and a leach bed in saturated cold ground drains slowly. Neither stops a well-kept system working; both argue for a shorter pumping interval.
Do I have to convert my cesspool now?
For most homes, not yet. The state has set a deadline for every cesspool to be converted or closed, and the Department of Health controls the schedule and the exceptions. What forces the issue sooner is a cesspool that has stopped draining, a sale where the buyer or lender wants it done, or a remodel that triggers a permit review. We can tell you which of those applies to you.
What does a conversion cost in Puna or Hilo?
It depends on the lot more than anything: how hard the rock is, whether a conventional field will fit, how far the truck and excavator can get in, and which system the Department of Health will approve. We give a written price after walking the lot, not a phone estimate that grows later, and we are up front that an aerobic unit or a raised bed on fill costs more than a simple tank and field.
Can I keep using my cesspool while the septic system is built?
Usually, yes. The new tank and field go in beside the old pit, the house plumbing is switched over once the new system is inspected, and then the cesspool is pumped, closed and filled. Most conversions keep the household running throughout, with a short switchover.
Will the conversion work with my rainwater catchment?
Yes, and the design has to account for it. The field or unit must sit a set distance from the catchment tank and from any neighbor’s, which on a smaller lot narrows where the system can go. We lay it out with the catchment in mind from the start so the permit is clean and your water stays clean.

Need Cesspool Conversion in Volcano?

Call now for a fast quote. We come to your property, and backups and emergencies get priority.

📞 Call or text (808) 649-5223