What size well pipe do you use?
We regularly stock 1″ and 2″ well pipe (though we can special order other sizes if required). 2″ pipe is the most common and is generally industry standard. As most of our installations are using our 4″-6″ solid stem augers, we usually will use the 2″ pipe, which is suitable for conventional Waterra tubing and valves, bailers, and water level or interface meters. We also use this pipe for installations using our large diameter hollow stem augers.
For wells installed with the rapid percussion units (Pionjar, Rota-Hammer, PEP) we are boring a 2″ hole and therefore we use 1″ well pipe. With our small diameter hollow stem augers, we would also normally use a 1″ well pipe. Though this pipe is smaller, a conventional water level or interface meter will fit in the pipe. We can also supply a small diameter bailer or a small diameter waterra foot valve for well sampling.
Kodiak has also developed a system for installing small diameter monitoring wells through asphalt with the Pionjar, without having to cut a large diameter hole with the concrete core machine and install a full size flushmount. We cut a 3″ diameter hole with our rock bit, install a 1″ well, cap the well with a small inside plug, and finish it all off with a 2.5″ diameter flushmount.
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