FAQs

No. Both airlift pumps use pressurized air (from the blower) to carry water via ascending bubble fluid pressure. The discharge airlift pump lifts treated effluent from the treatment tank to the disinfection chamber but depends on gravity to carry it to a subsurface disposal system. You must specify a separate discharge pump for pumping effluent if head is necessary.

Fuji Clean standard hydraulic sizing assumes domestic strength influent (i.e. about 250 mg/L BOD and 150 mg/L TSS). Models to treat higher strength waste streams are upsized linearly based on organic loading strength. For a site with 2x domestic strength would require a Fuji Clean system with 2x hydraulic capacity.

Fuji Clean offers professional engineer assistance free of charge for all non-standard systems – especially higher strength and higher flow systems. Designers and engineers are strongly encouraged to take advantage of this service.

Yes. Air blower operation is independent of hydraulic flows. Please refer to the Design Specification Table for power consumption detail.

Yes. Please refer to Documents in the Technical Library tab.

Fuji Clean USA requires that sludge be measured at each 6-month service visit. As directed in the Fuji Clean O&M Manual, system pumpout should occur when sludge levels reach 35" in the sedimentation chamber (first chamber) or 16" in the anaerobic chamber (middle chamber). Based on "normal" full time household water use, Fuji Clean estimates that a pumpout should be required about once every 2+years. A higher pumout frequency will be required with high hydraulic or organic strength influent – particularly if a garbage disposal is being used.

All Fuji Clean systems come equipped with a chlorine dispenser with an adjustable dispensing rate mechanism. Recognizing that chlorine is not allowed in many states, Fuji Clean's NSF245 testing configuration included a post treatment Salcor Model 3G disinfection unit. The CEN5 system with one Salcor 3G disinfection unit meets Washington State standards. An NSF fecal report is available upon request. Please contact Fuji Clean USA for additional information.

The Fuji Clean system is designed to accommodate variable flows via the recirculation airlift pump, which has a built in mechanism for leveling variable flow to maximize retention time and treatment. Research shows that the average effluent flow rate for Fuji Clean residential systems is 0,82-gpm. (Please contact Fuji Clean for details). For extreme variable flows (such as in a church situation where there is a very large peak flow one day a week), we recommend the installation of a preceding settling tank large enough to accommodate total peak flow and metered or dosed flow to the system throughout the unused periods.

Our largest single system that we keep in stock is the Fuji Clean CE30 system, capable of treating 2,700-gpd. Our largest system available, which typically requires a 90-day lead time, is the CE6KG system, capable of treating 6,000-gpd of domestic strength wastewater. Please contact Fuji Clean USA for more information.

Yes, please refer to page 3 of the technical study for a summary technical explanation of how P removal is accomplished with Fuji Clean CEX and CRX systems. For more details, please contact Fuji Clean USA directly.

Discharges from water treatment systems, such as water softeners or water filtration systems that require back flushing, are high in salt content and should not be considered wastewater nor pumped into a biologic treatment system. Instead, if possible, divert this flow into a separate, properly constructed dry well or directly into a subsurface drainage field (refer to state and local codes).

Fuji Clean treatment is powered by air pressure provided by a remote air blower designed to run continuously. The treatment process easily accommodates variable and intermittent flows, including only weekend use, However, for seasonal use properties, the air blower may be shut down if the system is not going to be used for an extended period of time. Ideally, the air blower should be re-started at least three days in advance of system use.

Yes, although your Fuji Clean system is designed to require minimal service, it does require semi-annual inspection or service visits from a trained and certified service provider. (This schedule may be altered for seasonal and part-time use). Your certified service provider will review details of your initial service plan included as part of the system warranty (first two years) and extended service plans (after two years).

Since your Fuji Clean USA system has been designed to operate continuously, it is easy to calculate power cost. Most standard residential sized units (e.g. CE5, CE7, CEN5) draw 1.2 kWh of power per day. Larger residential sized units, (e.g. CE10, CEN7 and CEN10) draw 1.7 kWh of power per day. Simply multiply your local cost of power by the draw per day to calculate daily power cost. FujiMAC RII blowers, manufactured by Fuji Clean Company power Fuji Clean treatment systems are best-in-class for efficiency and durability and draw minimal power.

Your Fuji Clean system is dependent on live bacterial microorganisms to clean wastewater. It is a living culture! Therefore, it is in your best interest to avoid the heavy use of bleach as much as possible. If you must use bleach, use it sparingly and spread out its use over time.

On occasion, a contaminated well may need to be disinfected (usually with Clorox bleach). If you need to do this, do not run the chlorinated water through your septic system. Instead, open the outside water faucets and let the water run for several hours or as long as necessary to flush the chlorine out of the well. Meanwhile, avoid using water inside the house.

Absolutely.  Be sure that plumbing fixtures such as toilet bowl fill valves and faucets are maintained and do not leak.  You would be amazed at how much water passes through the system with a small leak or dripping faucet.  Your system is sized to meet standard flows from your house and therefore any excess flows will not help water treatment. Remember that maintenance of these fixtures also conserves your water.