Solinst 407 Mk2 PVC Bladder Pump Instruction Manual

: September 8, 2024
: Solinst

Table of Contents

Solinst 407 Mk2 PVC Bladder Pump
Product Usage Instructions
Operating Principles
Pump Operation
Dedicated Wellhead Setup (110227)
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Solinst 407 Mk2 PVC Bladder Pump

Specifications:

Model: 407 Mk2 PVC 1.66 Dia.
Maximum Depth: 30 m (100 ft)
Operating Pressure: Up to 50 psi
Tube Fittings: 1/4 drive line and 1/4 sample line

Product Usage Instructions

Portable Pump Operation:

Attach skip-bonded, dual 1/4 OD tubing to the pump.
Lower the assembled Bladder Pump into the well using a safety line.
Connect compressed gas source to Control Unit and reel.
Attach a short length of 1/4 OD sample line to the reel.

Dedicated Wellhead Setup:

Cut tubing to desired length for attachment to Wellhead.
Push the drive and sample tubing over the tubing barbs on the pump.
Attach sample line and drive line to appropriate push fitting on the underside of the Wellhead.

FAQ:

Q: What is the maximum depth for PVC Bladder Pump operation?
A: The maximum depth is 30 m (100 ft) below grade.
Q: What operating pressure should not be exceeded?
A: Do not exceed an operating pressure of 50 psi.
Q: What is recommended when using a compressor to operate the Bladder Pump?
A: An external filter (pt#112832) is recommended.

Operating Principles

When the Solinst Bladder Pump is placed in a well or borehole, water rises inside the bladder and sample tubing to static level. Compressed nitrogen or air is supplied to the pump via the drive tubing using a Control Unit. Applying pressure causes the bladder to compress and closes the bottom check valve, forcing water from the bladder into the sample tubing.
During a vent cycle the pressure is released from the drive tubing. The bladder returns to its initial state as water re-enters the pump, while the top check valve prevents water already in the sample tubing from falling back into the bladder. Cycling the drive and vent provides water flow, the rate of which can be adjusted for purging or sampling.

Notes:

The maximum depth for PVC Bladder Pump operation is 30 m (100 ft) below grade.
DO NOT exceed an operating pressure of 50 psi.
An external filter (pt#112832) is recommended if using a compressor to operate the Bladder Pump
Tube fittings are based on use of 1/4″ drive line and 1/4″ sample line.

Pump Operation

Portable: The pump will be attached to skip-bonded, dual 1/4″ OD tubing, mounted on a reel.

Push the drive and sample tubing over the tubing barbs on the stems, identified by an “S” and a “D” etched on the pump.
Note: If required, use an awl to open the very tip of the tubing, or heat the tubing to help push it completely over all the barbs.
Lower the assembled Bladder Pump into the well, using a safety line connected to the eye bolt on the pump. Kevlar cord or the Solinst Model 103 Tag Line can be used for this purpose.
Connect the supply line with the in-line dryer from the compressed gas source to the Control Unit. The drive line connects from the Control Unit to the reel (drive and supply lines come with the Model 464 Control Unit).
Attach a short (3 ft. or 1 m) length of 1/4″ OD sample line to the sample connector on the reel.

For detailed pumping instructions, please see the Solinst Model 464 Control Unit Operating Instructions.

Portable Sampling Setup

Dedicated Wellhead Setup (110227)

Wellheads come with three 1/4″ push fit adaptors so that either 1/4″ or 3/8″ tubing can be used, as preferred.
To attach tubing just push into push fitting. To release tubing push down on both sides of the top ring and pull tubing out.

Dedicated: The pump will come with a roll(s) of tubing to be cut to length, as required, for attachment to a Wellhead.

Cut the tubing to desired length. Push the drive and sample tubing over the tubing barbs on the stems, identified by an “S” and a “D” etched on the pump.
Attach the sample line and drive line to the appropriate push fitting on the underside of the Wellhead (see diagram
Note: If required, use an awl to open the very tip of the tubing, or heat the tubing to help push it completely over all the barbs.
for use of push fittings and adaptors).
Lower the Bladder Pump into the well, using a safety line if desired. If useful, attach the safety line to the suspension hook on the underside of the Wellhead. Push the Wellhead down firmly onto the riser casing.
Connect the supply line with the in-line dryer from the compressed gas source to the Control Unit. The drive line connects from the Control Unit to the Wellhead (drive and supply lines come with the Model 464 Control Unit).
Attach a short (3 ft. or 1 m) length of 3/8″ OD sample line to the sample connector on the Wellhead (see diagram for use of push fitting and adaptor).

For detailed pumping instructions, please see the Solinst Model 464 Control Unit Operating Instructions.

Optional Drive Line Adaptor (107117)
When the Bladder Pump is deployed without a Wellhead or Tubing Reel, use a Drive Line Adaptor to allow the connection of the drive line quick connect fitting from the Control Unit to the drive line pump tubing.

Decontamination

Note: The pump has been decontaminated before leaving Solinst, however, you may wish to decontaminate your pump before use. The pump should be decontaminated between wells.

Completely disassemble the pump. See Disassembly section.
Wash all pump components with phosphate-free soap or a detergent.
Rinse all components thoroughly with deionized water.
Replace any worn O-rings and Bladder if necessary, and reassemble. We recommend replacing Bladders between wells, or as needed.

Disassembly

Unscrew and remove the Filter Retainer, Vyon Filter and Top and Bottom Platens, being careful not to lose the Check Balls.
Remove the Bladder Cartridge from the Pump Body.

Reassembly

If necessary install new O-rings on both Top and Bottom Retainers and both Platens. (Total of 7).
Put the Vyon Filter over the Filter Retainer. Screw the Filter Retainer into the Bottom Platen.
Drop the 3/8″ OD PTFE Check Ball into the Bottom Platen. Do not force the ball in, as the correct ball should drop in easily.
Fit the Bottom Retainer of the Bladder Cartridge Assembly firmly into the Bottom Platen. (Bottom Retainer has a notched end).
Slip the Pump Body over the Bladder Cartridge Assembly and screw it onto the Bottom Platen.
Drop a 3/8″ OD PTFE Check Ball into the Top Platen and screw the Pump Body onto it.
Shake the assembled pump to hear if the Check Balls rattle. If not, repeat the steps to ensure that the Check Balls are positioned correctly.

Model 407 2 ft. x 1.66″ dia. PVC Bladder Pump (117212)

®Solinst is a registered trademark of Solinst Canada Ltd.
Solinst Canada Ltd. 35 Todd Road, Georgetown, Ontario Canada L7G 4R8 www.solinst.com