From: Ears to the Ground
Logger Advice From Vern Price and Grant Laughter of the Las Vegas Valley Water District
- Have the vendor do the initial install, and hold the vendor responsible for the installation.
- If you’re going to use in-house people to do the installation, you need a quality assurance/quality control program to ensure the job is done right.
- You really need to think about installation on major streets. These streets are hard to patrol and if you do find a leak, you have to work around the traffic. Of course, each district needs to find its own way around that. You need to find those leaks anyway, especially in a drought.
- Use antenna extensions.
According to Price, Fluid Conservation Systems recommends that all new loggers be retrofitted with extension antennae.
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These 7-foot chords attach to the antennae and the device, so the logger’s antennae can be placed right below the water main lid. “Since the average valve depth is less than 7 feet, that’s going to help you get that signal up out of the ground,” says Price. “FCS is actually providing us with extension antennae to retrofit the logger we have already bought. The last 430 we just installed we put extension antennae on every one of them.”
- When you install these in a valve cam, you need to put a disc in the top of that cam that warns people that there is a device in there. Otherwise, people will drop a valve wrench in there and pretty much destroy these devices. Then you have the problem of how you get the parts out so you can get on top of the valve again. Lose a device and now you have the additional problem of how to get on top of the valve.
Power transformers cause problems for loggers; they give false positives. That 60-Hertz hum will throw the logger into leak mode. So you do not want to install them close to the power transformer.
Source: NOAA
September-October 2007
From: Ears to the Ground
Logger Advice From Vern Price and Grant Laughter of the Las Vegas Valley Water District
- Have the vendor do the initial install, and hold the vendor responsible for the installation.
- If you’re going to use in-house people to do the installation, you need a quality assurance/quality control program to ensure the job is done right.
- You really need to think about installation on major streets. These streets are hard to patrol and if you do find a leak, you have to work around the traffic. Of course, each district needs to find its own way around that. You need to find those leaks anyway, especially in a drought.
- Use antenna extensions.
According to Price, Fluid Conservation Systems recommends that all new loggers be retrofitted with extension antennae. These 7-foot chords attach to the antennae and the device, so the logger’s antennae can be placed right below the water main lid. “Since the average valve depth is less than 7 feet, that’s going to help you get that signal up out of the ground,” says Price. “FCS is actually providing us with extension antennae to retrofit the logger we have already bought. The last 430 we just installed we put extension antennae on every one of them.” - When you install these in a valve cam, you need to put a disc in the top of that cam that warns people that there is a device in there. Otherwise, people will drop a valve wrench in there and pretty much destroy these devices. Then you have the problem of how you get the parts out so you can get on top of the valve again. Lose a device and now you have the additional problem of how to get on top of the valve.
Power transformers cause problems for loggers; they give false positives. That 60-Hertz hum will throw the logger into leak mode. So you do not want to install them close to the power transformer. |
| Source: NOAA
|