Accu-Tab^® System vs. Bleach and Gas

		Accu-Tab System	Bleach	Gas
	Safety	Easy to handle; no spills	Spill and leak concerns	Major gas leak concerns
	Charging chemical	Easy to add tablets; only one person needed	Hard to maneuver; heavy drums or lots of small carboys	Two trained persons needed; breathing protection required
	Chemical balance	No bicarbonate use and less acid use	High TDS levels; high acid use for pH control	High bicarbonate use to balance pH
	Material compatibility	More neutral pH; less corrosive	High pH; corrosive	Low pH; very corrosive
	Convenience	55-lb. pail of tablets easy to handle	Bleach drums awkward to handle	Hard to maneuver cylinders; special handling training needed
	Chlorine strength	Small change over a year	Significant loss in a week	Consistently 100% chlorine
	Chlorine delivery control	Consistent strength makes for easy, reliable control	Ever-changing strength makes control difficult	Troublesome regulators needed; harder to automate
	Storage convenience	55-lb. pails stacked three high; same space as 150-lb. cylinder; no separate room	Drum deposits; bulk tanks or drums require space and possibly containment pad	Separate room with special access needed; fans, scrubbers
	Auxiliary equipment	No moving parts in chlorinator itself	Troublesome metering pumps required	Eductors, regulators have small orifices prone to plugging

Accu-Tab is a registered trademark of PPG Industries.