Wastewater/Stormwater Sampler

Wastewater/Stormwater Sampler

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  • Ideal for wastewater, industrial and environmental sampling
  • Does composite, discrete or both types of sampling
  • Simple to operate – no programming required
  • Output provided for use with optional datalogger
  • Lightweight and easy to carry
  • Rugged construction for harsh environments
  • Meets federal, state and local wastewater regulations
  • Timed and external flow proportional sampling
  • Adjustable and repeatable sample volume
  • Peristaltic pump prevents sample contamination
  • Automatic backflush clears pickup strainer and hose
  • Rechargeable battery or AC powered
  • The easiest and most reliable method for collecting water quality samples

Stormwater/Wastewater Samplers Specifications

Our new WS750 two-bottle wastewater/stormwater samplers combine all the features you need to meet a wide variety of sampling requirements, including those for stormwater, industrial discharge, water and wastewater treatment, waste collection systems, and rivers and streams.

The WS750 wastewater/stormwater sampler's state of the art controller gives you complete control over your wastewater/stormwater sampling process.  With the wastewater/stormwater sampler's sample size control, you can take individual time-weighted composite samples or full-bottle discrete grab samples. The wastewater/stormwater sampler's sample interval control allows you set the time between individual composite samples or enable the external trigger mode. A start delay timer allows you to start multiple wastewater/stormwater samplers in the field at the same time, or to delay drawing a wastewater/stormwater sample after a triggering event so that your sample better represents the water source.  An automatic 15 second backflush cycle clears any debris from the wastewater/stormwater sampler's strainer and empties the water from the hose so the next sample is not contaminated.

A unique feature of the WS750 stormwater/wastewater samplers is the ability to set the sampling mode for each pump and bottle individually. This allows you to take two individual time-weighted or flow proportional composite samples, or you can set the stormwater/wastewater samplers to take full-bottle discrete (grab) samples, or you can set the stormwater/wastewater samplers to take a full-bottle discrete (grab) sample in one bottle and a time-weighted or flow proportional composite sample in the other.  In the case of two composite samples you can have different size settings for each pump.

The WS750 stormwater/wastewater samplers are easy to set up in the field. The stormwater/wastewater samplers rugged rainproof enclosure can be padlocked and/or chained to prevent tampering. The stormwater/wastewater samplers are enclosed in a relatively small case that can be easily hidden or camouflaged to prevent vandalism.  The stormwater/wastewater sampler's is lightweight enough that even with a full sample bottle it can be suspended in a manhole for stormdrain or sewer sampling.

The WS750 wastewater/stormwater samplers come with two 1-gallon polyethylene sample bottles for collecting composite samples, two peristaltic sampling pump, a circuit board controller, and a rechargeable gel cell battery.  Also provided are two sample pickup hoses and a battery charger.  Everything you need is provided for a successful wastewater management or environmental monitoring program.
Low Power
The composite/discrete water sampler's 5 AH rechargeable battery will power the sampler for several months or a half hour of continous sampling with both pumps.
Overflow Protection
The wastewater/stormwater sampler's sample bottles are each equipped with a float switch that automatically turns off the peristaltic sampling pump if the water bottle becomes full.
Sample Size
The user can adjust the wastewater/stormwater sampler's peristaltic pumps individually to one of 15 composite sample sizes from 50ml to 2 liters plus a full bottle discrete setting.  The wastewater/stormwater sampler's peristaltic pumps can be set to a single sample time interval from 5 min. to 12 hours plus an external trigger mode setting for flow proportional sampling.
Flow Proportional Sampling
An external pulse-type flow meter can control the water sample interval for true flow proportional sampling.  Global Water's Open Channel Flow Monitor has a flow-proportional output signal for triggering the WS750 wastewater/stormwater samplers.  If you already have a flow meter but it has a 4-20mA output, please look at the related products section of the Wastewater/Stormwater Samplers Options & Prices section.


Stormwater/Wastewater Samplers Specifications

Operating Temperature0° to +70°C
Size of unit22”H X 17"W X 9"D
Weight22lb (Shipping Weight 24lb)
  • Enclosure: Expanded UV protected PVC
  • Bottle: Two 1 gallon Polyethylene
  • Pickup Hose: 15' reinforced PVC 1/4" ID polyethylene flexible tubing section with intake strainer
  • Pump Tubing: Norprene 1/4" ID, 7/16” OD
Sample Pump
  • Flow Rate: 1000 ml per minute at a 4 foot head
  • Type: Peristaltic
  • Maximum Lift: ~20 feet
BatteryRechargeable 5 AH Gel Cell
Battery Life:One Pump running: ~1 hour  Two Pumps running: ~ 1⁄2 hour
Standby3 months while still retaining enough power to run the pump to capacity
Start Delay16 time settings from 0 to 12 hours
Composite Interval15 time settings from 5 min. to 12 hours plus an External Trigger mode setting
Sample Size15 composite sample sizes from 50ml to 2 liters plus a Full Bottle discrete setting
(Approximate sizes at 4 foot head)
External Trigger Input
  • 250mS minimum pulse width
  • Switch closure or 4-30VDC
Pulse Output
  • 5VDC one-second pulse
  • 1000ohm output impedance
Bottle Switch Input
  • Switch closure Input
  • Floating read switch in bottle
Rain and Water SensorsOptional moisture sensors or switch closure inputs
Internal Fuse10A Slow-Blow


Stormwater/Wastewater Samplers Options & Prices


WS750 Stormwater/Wastewater Sampler
Includes the following parts: a rugged, rainproof, lockable carrying enclosure, two 1 gallon polyethylene sample bottles, two peristaltic sampling pumps, a control panel enclosed logic timer/controller, two 15' reinforced PVC sample pickup hoses with removable debris strainers, a 5 AH rechargeable gel cell battery, and a battery charger
WSSWK Stormwater Kit
Includes CA0400 Rain Sensor, CA0500 Flow Sensor and RG333 Auto-drain Rain Gauge.
WSSWK Stormwater Kit
Includes CA0400 Rain Sensor, CA0500 Flow Sensor and RG333 Auto-drain Rain Gauge.
For continous sampling use the AC option to power your sampler.  NOTE: AC option trickle charges interal battery, Sampler does not run directly from AC power.
FN0000 Smart Charger
Maintain constant battery voltage and increase battery life.
SP101 Solar Panel (80mA)
Supplemental Power for remote Stormwater/Wastewater Water Sampler sites.

SP102 Solar Panel (5 watts, 300mA minimum)
Supplemental Power for remote Stormwater/Wastewater Water Sampler sites.

12V 5AH Rechargable Battery
Battery Charger (120VAC to 12VDC)
Reinforced PVC Pickup Hose
Pickup Strainer
Rain Sensor
Flow Sensor
Peristaltic Pump Tubing
Sample Bottle, Plastic
Float Switch
Auto-Drain Rain Gauge
WS700 Composite/Discrete Water Sampler
Single pump composite or discrete water sampler.
WS700R Refrigerated Composite Sampler
RG750/RG755 4-20mA to Pulse Converter
This module is for use with flow monitors that produce a 4-20mA output.  There are two versions available, one that pulses every 15 minutes at 20mA (RG750) and one that pulses every 30 minutes at 20mA (RG755).  Please specify the unit conversion that best suits your application at the time of order.
AD200-1 Voice Alarm Autodialers
Voice alarm autodialers includes one inputs and four phone/pager numbers.
3 FT Long Handled Dipper
Swing Sampler w/Pole & Bottle
Sludge Judge, 15 FT
GL500-7-2 Multichannel Data Logger
Features 7 analog channels and 2 pulse channels, USB and serial communication port, and includes software and cables.  Requires an external 12 VDC power source.
GL500-2-1 Datalogger
Specify Serial or USB version when ordering.  Features 2 analog channels and 1 pulse channel.  Includes two internal 9V batteries, Windows-based Global Water Datalogger Software, and PDA software for the CE operating system.
WQ900 Water Pollution Testing Kit
FSS Flow Sampling System
A unique combination of instruments that makes monitoring, sampling, and recording stormwater or industrial discharge water flows easy.
WQS Water Quality Sampling System
A unique combination of instruments that allows for monitoring, sampling, and recording of water flows that exceed a water quality parameter such as turbidity, pH, conductivity, ect.
SIT60 Satellite Internet Telemetry
Replace the datalogger on your composite sampler with a telemetry system that pages you or alerts you via text messaging that your sampler took a sample.