GeoInsight Online -No-purge samplers, passiver samplers, direct push equipment

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		HOME SMALL DIAMETER WELL PRODUCTS DOWNWELL SAMPLING & MONITORING PRODUCTS HYDRASLEEVE NO-PURGE SAMPLER

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HYDRASLEEVE REFERENCE
DOCUMENTS

	ITRC Document Overview of Passive Sampler Technologies concludes HydraSleeve is an inexpensive, simple tool to collect groundwater samples without purging. View the PDF Passive Sampler Tech Matrix

	McClellan Air Force Base Final Report rates HydraSleeve highest among no-purge groundwater sampling devices tested at the former McClellan AFB, California. View the Report Passive Samplers Comparison

NOTE: GeoInsight can provide custom sand filter pack sizes on request for these devices.

Provide your choice of filter pack for your locally obtained slotted screen, delivering the performance you need with assured thread compatibility and reduced shipping costs.

PrePak Jacket (U.S. Patent No. 6,416,661)
These economical, sand-filled jackets quickly slip over any perforated screen, regardless of slot size or thread pattern, making one-pass well installation using direct push easy and fast. Use your screen and casing, save on shipping and insure thread compatibilty. Tough but inert food grade poly filter fabric retains your choice of fthree sizes of ilter sand. UltraFine jackets can provide turbidity control in conventional drilled wells. The 60" long PrePak Jackets can be stacked for longer screen intervals. Special sand sizes and jacket lengths can be custom ordered.

SPECIFICATIONS
Materials:Outer & inner layers - food grade poly filter fabric; Clamps - stainless steel;
Sand Pack - silica sand in Standard (20x40), Fine (40x70), or UltraFine (120) mesh.
Smallest Filtration Capacity: Silt

Pipe Size
Length
(feet)

OD
(inches)

Open Area
of Jacket

3/4" 5.0 1.4 >25%

1" 5.0 1.7 >25%

All-Stainless Steel PrePak Screen delivers durable, trouble-free service in the harshest downwell environments, saving you 50% compared to conventional stainless steel screens.

Stainless Steel PrePak Screen
With no plastic components, this all-stainless steel PrePak Screen is ideal for monitoring wells in aggressive groundwater environments. It can also be used as an injection well for corrosive remediation liquids. Its unique design provides more open area than conventional screens at less than half the cost of wire-wrapped screens. Available UltraFine silica sand pack cuts turbidity by orders of magnitude.

SPECIFICATIONS
Materials: Outer layer - 160 mesh stainless steel screen; Inner layer - 160 mesh stainless steel screen (Fine & UltraFine models) over perforated stainless steel pipe; Pack - silica sand in Standard (20x40), Fine (40x70), or UltraFine (120) mesh.
Smallest Filtration Capacity: Silt

Pipe Size
Length
(feet)
ID / OD
(inches)
Open
Area

3/4" 2.5, 5 0.81 / 1.4 10%

1" 2.5, 5 1.03 / 1.7 10%

1-1/4" 2.5, 5 1.34 / 2.4 10%

1-1/2" 2.5, 5 1.59 / 2.4 10%

2" 2.5, 5 2.05 / 2.8 10%

All GeoInsight PrePak Screens provide maximum ID for larger tools and minimum OD to fit inside smaller casings.

PrePak Well Screen
The 3/4" size allows larger sampling equipment than will fit inside commonly used 1/2" direct push wells. Usable inside most 2" or 2-1/8" direct push casing, or can be installed in an open hole. Each section is flush threaded with an o-ring seal for assembly of longer screens. Flush threaded end plugs are available. The other sizes have the same design as the 3/4" but are made to install larger wells inside a larger hole or casing.

SPECIFICATIONS
Materials: Outer layer - 65 mesh stainless steel screen; Sand Pack - 20x40 silica sand over 0.010” slotted Schedule 40 PVC.
Smallest Filtration Capacity: Fine Sand

Pipe Size	Length (feet)	ID / OD (inches)	Open Area
3/4"	2.5, 5	0.81 / 1.4	2%
1"	2.5, 5	1.03 / 1.7	2%
1-1/4"	2.5, 5	1.34 / 2.4	2%
1-1/2"	2.5, 5	1.59 / 2.4	2%
2"	2.5, 5	2.05 / 2.8	2%

Plus 10 PrePak Screen and Economy Plus 10

Plus 10 PrePak Screen has a high open area to reduce waiting for samples in low-yield wells. Front: Standard Plus 10 PrePak Screen (stainless steel); center: Economy Plus 10 (food grade poly filter fabric); rear: 0.25" Schedule 40 slotted PVC base pipe showing high open area.

Plus 10 PrePak Screen and Economy Plus 10
(U.S. Patent No. 6,416,661)
With 10 times the open area and 10 times the filtration capacity, these >20% open area screens are ideal for Long Term Monitoring (LTM) of natural attenuation using low purge or passive sampling. High open area minimizes stagnant water to cut sampling time in low-yield wells. UltraFine filter pack can reduce turbidity by orders of magnitude and remove silt size particles, preventing siltation of the well. NOTE: Economy Plus 10 PrePak Screens are available with nylon clamps for metals sampling applications.

SPECIFICATIONS
Materials: Outer layer - stainless steel screen or food grade poly filter fabric; Inner layer - stainless steel screen or food grade poly filter fabric over 20% open slotted Schedule 40 PVC; Sand Pack - silica sand in Standard (20x40), Fine (40x70), or UltraFine (120) mesh.
Smallest Filtration Capacity: Silt

Pipe Size
Length
(feet)
ID / OD
(inches) Open
Area

3/4" 2.5, 5 0.81 / 1.4 >20%

1" 2.5, 5 1.03 / 1.7 >20%

1-1/4" 2.5, 5 1.34 / 2.4 >20%

1-1/2" 2.5, 5 1.59 / 2.4 >20%

2" 2.5, 5 2.05 / 2.8 >20%

Low-cost, modular units provide fast, easy direct push well installation and economical performance suitable for many ground water monitoring and remediation applications.

Economy PrePak Screens
Ready-to-use, affordable Economy Screens provide cost-effective, convenient modular well installation. Economy Screens are suitable for use in most ground water sampling, air sparging, and water level monitoring applications.

SPECIFICATIONS
Materials: Economy Screen: Outer layer - food grade poly filter fabric; Clamps - stainless steel or nylon; Sand Pack - 20X40 silica sand over 0.10" slotted Schedule 40 PVC.
Smallest Filtration Capacity: Fine Sand

Pipe Size
Length
(feet)
ID / OD
(inches)
Open
Area

3/4" 2.5, 5 0.81 / 1.4 >20%

1" 2.5, 5 1.03 / 1.7 >20%

1-1/4" 2.5, 5 1.34 / 2.4 >20%

1-1/2" 2.5, 5 1.59 / 2.4 >20%

2" 2.5, 5 2.05 / 2.8 >20%

Flow Thru Screen and Economy Flow Thru Screen

Quick and easy Flow Thru Screens are ideal for inexpensive sampling with fine particle filtration and a high open area in naturally developed wells.

Flow Thru Screen and Economy Flow Thru Screen
Inexpensive 3/4", 1-1/4" and 2" intake screens used when small particle size filtration and maximum open area are needed for naturally developed wells.

SPECIFICATIONS
Materials: 160 mesh stainless steel screen over >20% open area slotted Schedule 40 flush threaded PVC pipe. Economy Screen: Inert food grade poly filter fabric over >20% open area slotted Schedule 40 flush threaded PVC pipe. Excellent for long-term injection points for groundwater remediation or air sparging.
Smallest Filtration Capacity: Silt

Pipe Size
Length
(feet)
ID / OD
(inches)
Open
Area

3/4" 2.5, 5 0.81 / 1.06 >20%

1" 2.5, 5 1.03 / 1.32 >20%

1-1/4" 2.5, 5 1.34 / 1.7 >20%

1-1/2" 2.5, 5 1.59 / 1.95 >20%

2" 2.5, 5 2.05 / 2.4 >20%