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(905) 238-5242
sales@waterra.com

(905) 238-5242
sales@waterra.com

SIMPLE SOLUTIONS FOR GROUNDWATER MONITORING SINCE 1985
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SIMPLE SOLUTIONS FOR GROUNDWATER MONITORING SINCE 1985

Nano Flow Groundwater Sampling Pump

Waterra Nano Flow Pump for Sampling

Nano Flow Groundwater Pumps are an evolution of the Waterra Pump (Inertial Pump) developed in Canada in the 1980’s. The Nano Flow system is a hand operated reliable and inexpensive pump comprised of a foot valve and a length of sampling tubing.

This system can be used in very narrow diameter piezometers, drive points or highly constricted sampling points. The flow rate for this system is quite small hence the name Nano Flow. Waterra Pumps are often dedicated to wells due to their low cost and to avoid cross-contamination or de-conning issues.

Waterra Nano Flow Pump System for Sampling Groundwater

Drive Points
& Constrictions

Max Flow: 
1/4 gpm = 1 lpm
Max Lift:
33 feet = 10 m

Here's How a Waterra Nano Flow Pump Works

  1. A  SS-6 or SS-9 Waterra Foot Valve is attached the bottom end of a length of either LDPE or HDPE Waterra Tubing.
  2. The Foot Valve – Tubing combo is inserted into the well, Foot Valve first, until the valve is submerged beneath the water table to the desired pumping depth.
  3. The tubing is then oscillated (pulled up and then pushed down) over a short vertical range about 1 foot (30 cm) of motion by hand.
  4. Water builds up in the oscillating tubing until it discharges at surface.

Illustration of Hand Operated

Nano - Flow System

Illustration showing operation of Waterra Pumps groundwater sampling system

Details of the Waterra Nano Flow Pump

Waterra Groundwater Sampling Pump - Nano Flow

The Nano Flow System is popular for use in direct push technology micro well installations and for tightly constricted piezometers

The SS-6 and SS-9 (Stainless Steel Foot Valves: OD = 6mm and 9 mm) can deliver a sample from as deep as 33 feet (10 m) and flow rates with this system are usually less than 1/4 gallon per minute (1 lpm). The SS-6 threads up into the tubing and the SS-9 threads over the tubing.

Waterra VOC Tubing is used for the Nano Flow System. The tubing is available in HDPE and LDPE options. LDPE is a little more flexible than HDPE.

Foot Valves - Stainless SteelTubingActuator
SS-6
or
SS-9
LDPE (Low Density Polyethylene)
— 0.25" OD X 0.17" ID
100, 500 and 1000 ft rolls

HDPE (High Density Polyethylene)
— 0.25” OD x 0.17” ID
100, 500 and 1000 ft rolls
By hand
Waterra Pumps Low Density Polyethylene VOC Tubing for Groundwater Sampling
Waterra Pumps High Density Polyethylene VOC Tubing for Groundwater Sampling
Illustration showing operation of Waterra Pumps groundwater sampling system

Nano Flow System: < 1/4 gpm & max 33 feet – drive points - (< 1 lpm & 10 m)

Waterra Pump Accessories

Waterra Tubing Cutter

Waterra Tubing Cutter

Waterra 0.45 Micron Groundwater Filter - FHT & FMT

Waterra 0.45 Micron Groundwater Filter – FHT & FMT

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