Solinst Model 615 Drive-Point Piezometer

The Solinst Model 615 Drive-Point Piezometer has a barbed fitting, allowing for connection of 5/8" OD x 1/2" ID (16 mm x 12 mm) LDPE or Teflon sample tubing.


  • Affordable method to monitor shallow groundwater and soil vapor
  • Attach to inexpensive 3/4" (20 mm) NPT steel drive pipe
  • Can be used for permanent well points or short-term monitoring applications
Starting At $72.00
Stock Check Availability  
The Solinst Model 615 Drive-Point Piezometer uses a high quality stainless steel piezometer tip, 3/4" NPT pipe for drive extensions and LDPE or Teflon sample tubing, if desired. Combine these with an inexpensive Slide Hammer and you have a complete system.

The Solinst Model 615 Drive-Point Piezometer has a stainless steel, 50 mesh cylindrical filter-screen, within a 3/4" (20 mm) stainless steel drive-point body, screen support and a barbed fitting for attachment of sample tubing. Optional heavy-duty extension couplings are also available to create a strengthened and more rugged piezometer.

The inner barbed fitting allows connection of 5/8" OD x 1/2" ID (16 mm x 12 mm) LDPE or Teflon sample tubing. This prevents sample water from contacting the steel extension rods, and maintains high sample integrity, even when inexpensive carbon steel extensions are used.
Questions & Answers
What is a barb?

The tubing barb connects 5/8" OD x 1/2" ID (16 mm x 12 mm) LDPE or Teflon sample tubing to the piezometer. This barbed fitting prevents sample water from coming in contact with the extension rods in order to maintain sample integrity. Piezometers without a tubing barb such as the 615N and 615NS are designed for use with water level meters.

What is the diameter of the piezometer?

All Solinst 615 Drive-point Piezometers are 3/4" in diameter with a 1" diameter tip. The shielded version includes an replaceable 1.5" diameter shield.

Is the Solinst piezometer reusable?

While the 615 Drive-Point Piezometers are commonly installed as permanent well points, they are reusable. However, if a shielded version (615S or 615SN) is used, the shield portion is single-use only and replacements are available.

What is the length of the piezometer? Is there a maximum depth restriction?

Piezometers are not suitable for all soil types, so the depth limitation will vary. The maximum depth penetration of the 615 piezometer will depend on the soil conditions, shield use and drive method used (slide hammer or drill). The piezometer itself is 6 inches long.

Please, mind that only logged in users can submit questions

Select Options

  Products 0 Item Selected
Part #
Solinst Model 615 Drive-Point Piezometer
Model 615 drive-point piezometer with barb, 6"
Check Availability  
Solinst Model 615 Drive-Point Piezometer
Model 615 drive-point piezometer with barb, 12"
Check Availability  
  Accessories 0 Item Selected
Notice: At least 1 product is not available to purchase online
Multiple Products

have been added to your cart

There are items in your cart.

Cart Subtotal: $xxx.xx

Go to Checkout

In The News

New map shows significant groundwater depletion in Central California

Groundwater level data collected by a Central California county shows significant drops during the past 12 years, according to a San Luis Obispo Tribune article. Data shows that groundwater has dropped by a minimum of 70 feet from 1997 to 2009 in the Paso Robles area of Central California. In the past four years the areas of most significant decline have expanded north and south. Drought and agricultural withdrawals are the likely culprits for the groundwater decline. Some advocates are calling for more responsible water use by vineyards in the area, while farmers note that the recent drought did not help the situation.

Read More

Coastal Restoration in Rhode Island

Anyone who has spent a significant amount of time in nature can likely relate to feeling connected and defensive toward protecting the environment. Heather Kinney, a coastal restoration scientist with The Nature Conservancy in Rhode Island, knows this feeling well, having felt a deep connection to nature her entire life. “I have always had a deep love for nature and the environment, particularly being out on the water and being drawn to the ocean, as cliché as that sounds,” says Kinney. Being so close to nature her entire life led Kinney to pursue a career in conservation and restoration. “You want to protect what you love, and I think that once I fell in love with it- it was something that I wanted to be able to pursue professionally,” she explains.

Read More

Not So Quiet Polar Night: Arctic Creatures Found to be Active During Dark Part of the Year

Most people need little more than a comfortable pillow, a blanket, and a dark room to drift off into a multi-hour snooze. Many researchers assumed that once plunged into darkness for about half the year during the polar night, most polar creatures would do the same: fall asleep and take a big nap for as long as the darkness lasted. But Jon Cohen, associate professor of marine sciences, school of marine science and policy, in the College of Earth, Ocean, and the Environment at the University of Delaware, wondered if that was true. Despite the technical challenges of monitoring biota in very low light conditions, Cohen and his team were determined to find out if krill, copepods, and other creatures were dozing off in the dark or seeking out prey, light, and each other.

Read More