Pentough Corp.

Service & Solutions

Water Level Screening Survey service
—— by Water Level Chip Logger

Efficient, Low-cost and Large-scale Water Level Screening Survey services.
Just like a Health Check-up , thoroughly screens sewer pipeline facilities for functional deficiencies and deterioration.

What is Water Level Screening Survey services ?

The Water Level Screening Survey service is the process of broadly sifting through pipe facilities to identify functional deficiencies and deterioration.

Areas with malfunctioning pipeline facilities will be identified based on water level observations. The results can be utilized for various countermeasures, including infiltration/inflow control, CSO and SSO management, stormwater management, and sewer heat utilization.

When & Where the Water Level Screening Survey service is needed?

When you want to conduct a wet weather inflow investigation , but are unsure where to start and which survey method to use.

When you are concerned that a Large-scale investigation for Inflow and Infiltration (I&I) countermeasures Survey may result in high costs.

When you want to monitor the water levels and overflow conditions in manholes during heavy rainfall.

How the Water Level Screening Survey service Works?

Water pressure logger will be temporarily installed at the bottom of the sewer pipe, together with the air pressure logger and rainfall transmitter (TOUGH NET), to measure the water level inside the pipe and rainfall at one-minute intervals.

Water pressure loggers are temporarily installed at multiple locations within each survey area, totaling anywhere from several dozen to several hundred sites.

Air pressure loggers and rainfall transmitters are typically installed at a rate of one unit per 5-kilometer area.

Air pressure loggers are placed at a height within the manhole where they will not be submerged. For manholes with a risk of overflow, we will place the loggers above ground.

Risk Assessment of Water Levels in Sewer Pipelines

Furthermore, the Water Level Screening Survey allows for a Risk Assessment of Water Levels in Sewer Pipelines

The pipeline water level risk assessment aims to continuously measure water levels by water level screening survey.It analyzes, via a matrix, if levels exceed the half-pipe level (invert elevation) during both dry and wet weather, providing an overview of overflow risks in pipeline facilities and indicating potential unknown water sources (e.g., rainwater inflow) based solely on water levels.

The Risk assessment results will be compiled into a hazard map and a record resembling a health check chart.Providing a clear overview of risk level trends and location information , and enabling an understanding of the current status for planned maintenance.

Products：Water Level Chip Logger

Tough Level C

Absolute Pressure Type

Tough Level G

Gauge Pressure Type

Tough Level U

Ultrasonic Type
(*Under development)

TOUGH NET

TOUGH NET is a WEB-based remote monitoring system designed to allow easy access to measurement data from various fields via smartphones or PCs. It is available in both portable and fixed type, making it suitable for a wide range of applications—from field surveys to continuous monitoring.

Products：
Remote Monitoring portable type Device (Web-Based via TOUGH NET)

Manhole Station:
A web-based monitoring system device for water level.
Real-time manhole water level monitoring allows for early detection of rising water level.

Manhole Station ALERT:
A web-based flood warning system device.
PENTOUGH Manhole Station system detects rising water levels, and PATLITE device issues the alert.

JIS FIT-B:
A web-based monitoring system device for water flow.
Real-time Open Channel water flowmeters monitoring allows for water flow.