DESCRIPTION - Nu-Well 220 dispersant polymer uses liquid dispersant chemistry specifically designed to remove mud and clay from the well environment. - Successfully develops new wells without using phosphate - Eliminates food source for bacteria (100 percent water-soluble, readily flushed from the well) - Rehabilitates old wells plugged with clays, silts, and fines - NSF approved for potable water well use
APPLICATION In new well systems, use Nu-Well 220 dispersant polymer as you would phosphates for drilling mud breakdown and well development. For optimal removal of bentonite drilling fluids, separately pre-treat the well with 1,500 ppm chlorine to break down the polyacrylamide polymers that are included in most commercial bentonite products. Determine borehole volume, and apply Nu-Well 220 dispersant polymer at the rate of 1 gal. per 500 gal. of water. Vigorously agitate by mechanical means for several hours (approximately 1/2 hour per 20 ft. of intake). If left in the well overnight, agitate before pumping out.
In older well systems use, Nu-Well 220 dispersant polymer to remove fine sands, mud, and clays that have filled in the gravel pack and borehole. Use at a rate of 1 gal. per 300 gal. of water. Vigorously agitate (by mechanical means), allowing the solution to stand in the well overnight and repeat the agitation the next day, before pumping out.
PHYSICAL PROPERTIES, SHIPPING AND HANDLING Appearance: Clear, slight amber colored liquid Density: 10.5 lbs./gal. Specific Gravity: 1.27 pH (as shipped): 7.0 Freeze point: 20°F (-3°C) Solubility: 100% Use range: 0.002 to 0.5% by volume - Not regulated as a hazardous material under 49CFR 172.101, RECRA, SARA, and CERCLA. In storage or use, avoid contact with strong acids or alkaline-based products - 1 gal. and 5 gal. containers can be shipped by UPS ground delivery - Additional physical and handling data are available on the product MSDS - Nu-Well 220 dispersant polymer is available in 1, 5
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