MONITORING
WELL
ACCESSORIES

DEAN BENNETT SUPPLY
DENVER, COLORADO
1-800-621-4291

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SURGE BLOCKS for WELL DEVELOPMENT

Download Surge Blocks page 87

Surge blocks are used to develope the gravel pack in a monitoring well.

Surge block is connected to a length of pipe to plunge the well to settle the sand around the screen. These beveled edge PVC plastic surge blocks are designed to develop your monitor well gravel pack by allowing for a gentle flow of water through the slotted screen. This in and out water flow action settles and sets the gravel pack, thus providing for maximum water flow into the well.

Price @

Description

$ 149.00

2" Standard Surge Block for 2" Sch 40 pipe has a 3/4" female iron pipe thread connection for the plunger rod.

$ 178.00

4" Standard Surge Block for 4" Sch 40 pipe has a 1" female iron pipe thread connection for your plunger rod.

$ 362.00

6" Standard Surge Block for 6" Sch 40 pipe has a 1-1/4" female iron pipe thread connection for your plunger rod.
6" Surge Block is NOW a Denver Stock Item

SEAMLESS POLYESTER FILTER SOCK

Download Filter Sock page 87

This fine mesh polyester filter sock fits tightly over your slotted screen and is designed to allow water to pass through while preventing fine sand from entering the well screen. The material is 100% knitted polyester, which is more inert and resistant to acids and oxidation degradation than nylon or most other spun bonded materials. It is available in continuous lengths up to a full 100 foot coil. The filter sock has a pore size of 250 microns, and a flow rate of approximately 250 gallons per minute, per square foot of area.. Filter sock is easily attached to your screen with nylon cable ties. 

 

Size

Description

Filter sock will keep fine particles of sand from penetrating the screen area of the well casing. $     1.08 foot   1" Filter Sock by the foot
$   69.00 roll   1" Filter Sock by the full 100' roll
$       .90 foot   2" Filter Sock by the foot
  45.00 roll   2" Filter Sock by the full 100' roll
$     1.55 foot   4" Filter Sock by the foot
$   78.00 roll   4" Filter Sock by the full 100' roll
$     1.80 foot   6" Filter Sock by the foot
  $   91.00 roll   6" Filter Sock by the full 100' roll
  $     2.95 foot   8" Filter Sock by the foot
  $ 135.00 roll   8" Filter Sock by the full 100' roll
  $     2.95 foot 10" Filter Sock by the foot
  $ 135.00 roll 10" Filter Sock by the full 100' roll
  $     2.95 foot 12" Filter Sock by the foot
  $ 135.00 roll 12" Filter Sock by the full 100' roll
  ( * 8" Filter Sock is a universal fit and can be utilized on 8" thru 12" diameter screens. )
00003SNCT1 $       .27 @ 8" long Nylon Cable Tie for 2" & 4" filter sock
00003LNCT1 $       .59 @ 15" long Nylon Cable Tie for 6" filter sock.

2" OCTOPUS WELL SCREEN RETAINERS

well screen retainer If you have ever had to re-drill a well after the PVC pipe came up when the auger was withdrawn, Octopus brand well retainers are your solution. They resist the buoyancy effects of groundwater when pushing monitoring pipe through the drilling auger. Octopus well retainers are made to fit over the male end of the well screen, and are held in place once the point is screwed over the end. As the well screen is pushed through the auger, the legs fold backward. Once the Octopus is pushed past the end of the auger, the legs flip back out straight and hold the well in place, much like a wall anchor expands once it is through a wall. Made of inert polyethylene, Octopus well retainers have the propere flexibility, even at very low temperatures. They've been tested and shown not to contribute any volatile organic compounds or petroleum hydrocarbons to groundwater samples. 
$ 13.95 2" OCTOPUS with Point  Price includes both the Octopus Retainer and a 2" flush joint threaded 
( ASTM F-480 2-Thread ) female sharp point. Retainer and point are shipped loose.

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Prices effective May 10, 2010