Tubing How it Works
 Purity Above all, QED ground water sampling tubing is specified for purity from the resins to production to shipping and storage, then verified with ongoing purity testing. Precision Diameter Control The outside diameter of sampling tubing is carefully controlled to high standards to ensure leak tight connections, so that sample integrity and pump operation are not impaired. Twin-line simplicity Our standard twin-line air supply/sample discharge tubing has a continuous heat-welded bond. It costs a little more than loose or cable-tied tubing, but users report several major benefits. It saves time and hassle by preventing tangles or hangups during pump installation and maintenance, and avoids entanglement with portable water level probes or other downwell equipment. Tubing assemblies are cut to exact length and pre-assembled to well cap and pump per customer specifications at no extra cost. QED also stocks the largest variety of discharge adapters, elbows, and couplers -- what you'd expect from the leading supplier of ground water sampling equipment. Quality materials and samples All tubing is controlled quality, virgin grade material that passes QED's rigorous standards -- the toughest in the industry. Economical Teflon-lined polyethylene tubing the most frequently used, with Teflon on the inside of the sample tubing, where it's really needed. Other material choices include all-Teflon, polyethylene, and polypropylene (for deep-well use). QED also stocks bulk tubing and many other sizes and materials; inquire for details |