Low flow purging and sampling involves extracting groundwater at rates comparable to ambient groundwater flow (typically less than 500 ml/min), so that the drawdown of the water level is minimized, and the mixing of stagnant water with water from the screened intake area in a well is reduced. Solinst Bladder Pumps are able to provide flow rates… Continue Reading »
Solinst provides a special “Freeze Protection Assembly” for anyone wishing to dedicate Bladder Pumps in conditions where there is a risk of the sample line freezing. The assembly is simple to install in the field and may be retrofitted with ease to existing Pumps. The assembly can be used with 1.66″ and 1″ Pumps, PVC or… Continue Reading »
Stainless Steel Bladder Pumps can lift from depths of 500 ft (150 m) below grade, and PVC models from 100 ft (30 m). Samples can be obtained from greater depths using a drop tube assembly. This places the screened filter intake of the pump as deep as necessary to access the sample zone required. Easily installed without tools on existing pumps,… Continue Reading »
Solinst Bladder Pumps have been long known to have Teflon® bladders backed with a 10-year warranty. These are ideal for dedication and VOC monitoring. Solinst also offers an inexpensive disposable polyethylene bladder, for clients who use a portable pump, or prefer to replace bladders at regular intervals, to prevent cross-contamination. Replacement is fast and easy, with no… Continue Reading »
Can you tell the difference? Which is Right for You? Both have their advantages. Bladder Pumps have low flow capability and ensure that no drive gas comes into contact with sample water, making them ideal, and approved by regulators worldwide for VOC sampling. Select a Bladder Pump for higher regulator acceptance and lower flow rates. Double Valve Pumps provide greater… Continue Reading »
We all know that bladder pumps are ideal for obtaining extremely accurate, representative groundwater samples. For this reason site regulators, owners, and consultants rely on bladder pumps for reproducible data that is defensible, time and time again. Although there may be a high initial capital investment, the bladder pump will pay for itself quickly. Only one pump… Continue Reading »
What do you do when your Pneumatic Pump is properly connected, yet there is no sample discharge? A simple ‘trick’ is to submerge the sample discharge line into a clear container of water. During the drive cycle you should see bubbles. An aggressive blast of bubbles can mean that there is no water available, while… Continue Reading »
Cory Environmental, a leading recycling and waste management company, operates in over 30 locations around the UK developing and maintaining recycling and landfill facilities. Over the years, they have purchased and tested a number of groundwater sampling instruments for use in monitoring programs at their landfill sites. In the past, portable submersible pumps and specialized… Continue Reading »
