- Specially designed for low flow sampling.
- Low flow ground water purging and sampling
- 2 in Sch 40 and larger-diameter wells
|TR-070||PVC Mini Bladder Pump, 1.33 in|
|TR-071||PVC Mini Bladder Pump, 1.66 in|
Dedicated Bladder Pumps
Dedicated applications where the pump and tubing are permanently installed in the well may greatly reduce sampling costs and improve sample quality. This method reduces the mixing of the water column during installation of the pump that occurs in portable use. Normally this will reduce the stabilization time during low flow sampling. In the dedicated scenario the pump and tubing are connected at the surface to the locking well cap. The field technician will simply connect the air supply and discharge tubing to the bulkhead fitting suspended below the locking well cap and begin to sample.
Locking caps provide a convenient way to suspend bladder pumps in dedicated installations. The cap has an expandable gland that holds it firmly in place and seals the well to prevent entry of surface water or contaminants. The cap includes connections for a stainless steel suspension cable and fittings for tubing from the pump. A 0.75 inch port allows a water level probe to pass through so that water level measurements can be made.
|TR-027||2″ Locking Well Cap|
|TR-028||4″ Locking Well Cap|