In 1997, EPA and Congress officially recognized onsite wastewater treatment systems (commonly referred to as septic systems) as a viable, long-term solution for treating wastewater. This was an important designation since nearly 40 percent of new homes in the United States use this type of system to treat household wastewater.
Recent trends in home construction and strict interpretation of plumbing codes are forcing the water conditioning industry to offer systems with higher flow ratings. While the need for higher flow rates in larger homes is genuine, the actual flow rates that are encountered are likely to be less than those predicted using the traditional fixture count method to calculate flows. The system manufacturer needs to carefully consider all components used to assemble the system when designing a water conditioner to meet a specific flow requirement.
Luxury homes dominate the market trends for valves compatible with high-flow fixture demands
Decentralized wastewater treatment presents us with a range of possibilities for community preservation and watershed management. However, these possibilities remain obscured by the limitations of the onsite codes and unforeseen by municipal wastewater authorities unaware of decentralization or reluctant to explore its range and potential.
In a municipal water supply application in Jamaica, ITT Industries’ Goulds Pumps unit is supplying the pumps and the expertise to improve aging and inadequate water supply infrastructure. These new water supply projects will improve the health of the customers served there by providing clean, potable water.
When a Leicester, Mass., developer planned a subdivision of 16 houses at the same elevation as the town’s water tower, he was faced with the problem of how to provide minimum water pressure mandated by the state. He had read about the use of a Goulds Aquavar pump control system in high-rise commercial buildings, and the idea of a variable-speed system appealed to him. He thought a pressure-demand system might do the job cost effectively.
At Work on Pumps
Significant developments in onsite water treatment has everyone in the industry working to keep up with the latest advances in septic system design, product innovations and management strategies.
Over the past 25 years, the onsite wastewater industry has developed many new treatment technologies that can achieve high-performance treatment on sites with size, soil, groundwater and landscape limitations that may preclude the installation of conventional systems.
September 2001 Editor’s Desk
The Ogden, Utah, area sought more cost effective and energy efficient ways to optimize and conserve its natural resources.
In the last issue, we reviewed ultraviolet (UV) disinfection as a suitable technology for treating biologically unsafe water supplies. In this article, we will focus on system design and understanding the many available options for residential and commercial applications.
Understanding Residential and Commerical UV