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Bailers vs. Low Flow Pumps

 

Dramatic Cost Savings using Bailers vs. Low Flow Pumps!

The recent economic downturn has made us all conscious of reducing costs. This independent analysis illustrates the dramatic cost savings of using bailers versus low flow pumps. This analysis is based on average retail pricing for standard 1.5" X 3' disposable bailers and rental pricing on standard 12VDC pumps. As you can see the cost for sampling twelve wells with bailers is just 22% of the cost of sampling one well with a low flow pump!

 

Cost for sampling 12 wells with Bailers
Quantity
Units
Rate
Estimated Cost
Bailers (Case of 24 at $78) 12 each
$3.25
$39.00
Braided Nylon Twine (est. 50" per well) 600 feet
$0.01
$8.73
Manpower Cost to sample well 0.5 hours
$50.00
$25.00
5 gallon bucket 1 each
$5.00
$5.00
Totals
$58.26
$77.73

 

Cost for sampling 1 well with Low Flow Pump
Quantity
Units
Rate
Estimated Cost
Pump rental 12VDC 1 day
$115.00
$115.00
Battery (can use vehicle battery depending on topography) 1 day
$25.00
$25.00
Horiba U-22 1 day
$125.00
$125.00
Polyethylene Tubing (3/8") 600 feet
$0.10
$60.00
Manpower cost to sample well 0.5 hours
$50.00
$25.00
Totals
$315.10
$350.00

 

    Additional factors that favor bailer usage include:

  • Additional manpower often needed for low flow pumps because of added weight and equipment hauling requirements.
  • Water quality meters require constant calibrating and replacement of probes.
  • Pumps only last for several sampling events and then require motor replacement which is often an extra charge.
  • If your vehicle's battery is used to power the pump it increases the chance of cross contamination from battery, oils, fuels, antifreeze and safety risks.