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1. Background to Surveys


Photo 1 S/Electron-Wave Water Treatment Unit 5200 (Large-sized Unit, Left) and ME-Bio in 1-Liter Container (Right)
Figure 1 Installation Diagram for Large-Sized Unit 5200
The surveys conducted this time began with a request received from an independent administrative corporation in January 2003. The request was to "conduct surveys in the feed water pipes of cooling water & cold water systems which have been in good working condition for 10 years since they were installed with Sunpearlty/electronic-wave water treatment units (hereafter referred to simply as Units, which have been used together with natural aerobic good bacteria called ME-Bio; Photo 1, Figure 1)."

The task of the surveys was to check changes from red rust to black rust in the pipes and whether the black rust is stabilized, by observing the conditions with an endoscope and making video/photographic record. The application of water treatment units is protection against corrosion (rusting) in building piping systems having no or poor pipe end cores. Background factors include lined steel pipes that came into use around 1967, with plastic coating joints emerging around 1975. The pipe end core debuted in the 1980s, and since then underwent various improvements. The target objective is to keep the piping usable over the useful file of the building.

There are two types of piping: circulating system for cooling water, cold water, etc., and single pipe system for feed water, etc. In the circulating pipe system, the effect of Unit becomes clear earlier because water circulates. In contrast, the single pipe system is slow in flow velocity, has detention time, and the resulting rust is soft and thick, so that a longer period is required after installation of the Unit before rust improvement effects can be visually verified. Bimetallic corrosion between steel pipe and gunmetal valve is not a particular problem because such a valve is at replaceable locations.

The wave motion emanating from the Unit (hereafter referred to as the "S wave," where letter S is for "Sindou" (a Japanese word meaning vibration)) is an electronic wave in a vibrating electric field. In the case of a high-elevation water tank on a condominium building, the Unit (several kilograms in weight, 10 watts in ac current consumption) is installed under the tank, and S-wave is propagated in water via the tank and pipe to treat the water in the feed line subsequent to the tank.

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