Well-Klean© is HCT's rehabilitation program for municipal, agricultural and industrial water wells, built on more than 1,000 rehabilitations. Every job starts with data: construction and history, pumping data, groundwater quality with bacteria, and downhole video.
Breaks down biofilm in the screen, gravel pack and formation, typically placed by tremie and soaked in cycles. Usually applied before the Descaler and can often be used with pump bowls in place. No neutralization step.
NSF/ANSI/CAN 60
An organically inhibited, catalyzed acid blend with dispersion, sequestration and chelation agents. Dissolves calcium carbonate, calcium sulfate, iron and manganese oxides, silicate scale and bio-mineral deposits. Penetrates deeper than plain hydrochloric acid and is inhibited for steel, stainless and PVC.
NSF/ANSI 60 (off-line use)
A proprietary base chemistry that works as a corrosion inhibitor, surfactant and sequestrant. Protects casing and screens and boosts the peroxide and Descaler chemistry, making it possible to treat older or compromised wells, wire-wrap steel screens and heat-exchanger systems.
NSF/ANSI/CAN 60
Well-Klean© chemicals are sold through authorized dealers and certified contractors, not online. HCT prescribes a well-specific protocol and quantities; the contractor supplies the equipment, rig time and expertise.
A 2001 potable well with iron casing and a stainless wire-wrap screen had been rehabilitated repeatedly, each time lasting about six months while burning out pumps and downsizing from 100 to 75 HP. Stakeholders assumed scale. HCT's assessment — downhole video, historical water analyses and the prior rehab history — pointed to biomatter.
HCT prescribed a tremied biocide with catalyst and inhibitor, vigorous brushing and swabbing, a follow-up with inhibited Well-Klean© Pre-Blend, soda-water flushing, development and disinfection. When the first pass under-delivered the plunging energy, HCT replenished the chemistry and spent three days on site with the contractor.
“The amount of debris that came out of the well when pumping was remarkable. The production is great after this rehabilitation and with the 75 HP pump.”
The operator reported drawdown “better than new” and chose to run the well 24/7 instead of intermittently.
HCT's Well-Klean© Assessment Form lists the minimum data required. Request the form →