Water levels and samples can be accurately obtained using the following quality Solinst instruments:
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Water Level Measurement:
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Model 102 Water Level Meter
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The narrow, laser marked, coaxial cable Model 102 Water Level Meter and 102M Mini Water Level Meter with a 0.157" (4 mm) diameter P4 Probe can be used to monitor water levels in any CMT channel. It is narrow enough to be used along side a pump in the same channel. |
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Well Completion: |

Model 103 Tag Line
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The Tag Line is ideal to aid accurate placement of sand and bentonite during borehole completion.
The durable cable is laser marked every 1/4 foot or 5 cm.
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Sampling Methods:
Depending on the depth to water at your site, and your sampling protocol, Solinst offers various sampling options.
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Model 410 Peristaltic Pump
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Ideal for sample retrieval from shallow water levels less than 30 ft. (9m).
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Mini Inertial Pump 1/4" (6mm)
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The Mechanical pump uses 1/4" LDPE tubing. Typical flow rates of 50 to 250 ml/min. Suitable for use to depths of approximately 150 ft. (45 m). If the water level on your site is deeper than 50 ft. (15 m), PTFE tubing is recommended.
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Model 408M DVP (3/8" Dia). Micro Double Valve Pump
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The Micro Double Valve Pump (DVP) is ideal for low flow VOC sampling in narrow applications. The Micro DVP is made of flexible PTFE or polyethylene tubing which is 3/8" (9.5 mm) in diameter. A manifold at the surface has a quick-connect fitting for attachment to the Solinst Electronic Control Unit and a bypass for easy sample collection. Operation is easy, as the Electronic Control Unit has built in presets. A multi-purge manifold is also available for the Micro DVP.
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Multi-Purge Manifold
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A multi-purge manifold can be considered for purging multiple CMT channels simultaneously using Micro Double Valve Pumps in each channel
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Model 464 Electronic Pump Control Unit
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Durable and easy to operate with the 408M by using built-in presets, or customized saved settings.
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Vapor Samples:
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Model 403 Vapor Monitoring & Wellhead Seal Assembly
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Channel seal assemblies are availabe to seal the CMT channels in case of flowing artesian conditions, or vapor monitoring. If desired, a 3-way valve can be attached to the seal assembly directing vapor to a pressure gauge connected at one end of the valve and a sample vessel at the other.
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CMT Multilevel - Monitoring Options |
Measuring Water Levels |
Depth to Water (ft) |
Level Measurement Device |
Flowing |
Flow Through Assembly consisting of:
3 way valve to: pressure gauge, sample tube, & stop flow.
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0 to 80 |
102M - with 1/4" P1 probe. |
0 to 300+ |
102 - with 1/4" P1 probe. |
Purging & Sampling |
Depth to Water (ft) |
Pump Type |
Suggested Tubing |
Typical Flow Rates (mL/min) |
< 25 |
410 Peristaltic Pump |
1/4" LDPE |
100 to 3000 |
< 50 |
Mini Inertial Pump |
1/4" LDPE |
250 |
50 to 200 |
Mini Inertial Pump |
1/4" Teflon |
50 to 250 |
< 50 |
408M Double Valve Pump |
3/8" LDPE & 3/16" Teflon |
250 |
50 to 200 |
408M Double Valve Pump |
3/8" LDPE & 3/16" Teflon |
50 to 250 |