Daiki Axis Announces Completion of National Registration for Disposer-Compatible Septic Tank, Becoming Industry's Only Model Eligible for Government Subsidy

Daiki Axis Co., Ltd. (Headquarters: Matsuyama, Ehime Prefecture; President and CEO: Hirotaka Oikame) announces that the registration process for its self-developed and operated disposer-compatible septic tank for single-family homes, the 'DSJ Type,' has been completed with the General Incorporated Association National Association of Municipalities Promoting Septic Tanks (hereinafter 'Zenjokyo') in June 2026.

With this registration, the DSJ Type has become the only model in Japan's domestic industry eligible for national government subsidy payments as a disposer-compatible septic tank. The company will use this milestone to promote the wider adoption of disposer-compatible septic tanks in the new single-family home market.

Background of Registration and Significance of 'Government Subsidy Eligibility'

A disposer-compatible septic tank is a system that grinds food waste from kitchens using a disposer unit and combines it with domestic wastewater for advanced treatment and purification. Generally, installing a disposer alone is prohibited by ordinances due to excessive load on sewer systems and rivers. However, installation in single-family homes becomes possible when paired with a dedicated wastewater treatment tank (septic tank).

Up to now, high initial costs have been a barrier to adoption. With the confirmation of this 'Zenjokyo registration,' the DSJ Type is now eligible for national government subsidies under the 'Consolidated Treatment Septic Tank Installation and Development Project' funded by national and local governments. This significantly reduces the initial installation cost for homeowners (individual customers), establishing a strong foundation to accelerate the adoption of disposers in single-family homes.

Features of the Disposer-Compatible Septic Tank 'DSJ Type' and Benefits of Disposer Installation

This product is an advanced treatment-type septic tank that not only improves convenience but also significantly contributes to improving residential hygiene and reducing environmental burden on local communities.

The high-concentration food waste wastewater discharged from the disposer is properly decomposed using proprietary solid-liquid separation technology and biological treatment processes (including carrier reaction, anaerobic and aerobic processes).

Installing a disposer allows food waste generated during cooking to be crushed and flushed away on-site, eliminating odor generation in kitchens and waste storage areas, significantly reducing the risk of hygiene pests such as fruit flies and cockroaches, and eliminating the physical labor of carrying heavy, moisture-laden garbage bags.

By reducing food waste—moisture-rich waste that constitutes the majority of household combustible garbage—this system helps prevent damage from nuisance birds such as crows at local waste collection points, contributing to urban aesthetics and hygiene. It also helps reduce municipal waste collection and transportation costs and lowers combustion energy (CO2 emissions) during waste incineration.

【Future Developments】

Capitalizing on this Zenjokyo registration, the company will strengthen proposals to homebuilders and enhance collaboration with industry associations and kitchen equipment manufacturers to expand the market for disposer-compatible septic tanks.

Additionally, through user surveys and collection of performance measurement data, the company will continue to improve the product and provide quantitative proof of its environmental conservation value.

【Corporate Overview: Daiki Axis Co., Ltd.】

Company Name

Daiki Axis Co., Ltd. (TSE Standard Code: 4245)

Headquarters

Matsuyama HQ: 1-9-1 Minazawa, Matsuyama, Ehime Prefecture

Tokyo HQ: 2-15-4 Higashi-Nihonbashi, Chuo-ku, Tokyo, PMO Higashi-Nihonbashi

Representative

President and CEO, CEO: Hirotaka Oikame

Business Activities

Development, design, manufacturing, sales, installation, and maintenance of septic tanks and wastewater treatment systems;

Wholesale and installation of residential plumbing equipment;

Renewable energy business (solar power, wind power, biodiesel fuel, etc.);

Household water server business

Company Website

https://www.daiki-axis.com/

◆ Inquiries Regarding This Press Release

Strategic Planning Division, Corporate Strategy Headquarters

Daiki Axis Co., Ltd.

E-mail: [email protected]