Brought to you by Accu-Tab

Bleach vs. Tablets – Tale of the Tape

iStock-5425895162.jpgManaging an aquatics facility requires a natural multi-tasker. From making sure the facility’s systems are functioning to managing human resources, it’s a job that requires both attention to detail and a short memory. 

Between chemical testing, constantly complying with health and safety codes, achieving proper water balance and many other day-to-day activities, the last thing you need to have clogging up your daily itinerary is an inefficient chlorination system.

So why make your day more stressful than it has to be?

When it comes to choosing a water sanitizing system, there are so many options to choose from. However, we will focus on two of the more prominent options – bleach and calcium hypochlorite (cal hypo) tablets.

First off, liquid bleach is an effective sanitizer of pool water. It’s used by commercial pools of all sizes across the globe. But it has its drawbacks, and for those pool operators who want to save time—but not sacrifice their facility’s water quality—a tablet based system might just be the answer.

Safety First
You preach “safety first” to the people who use your pool, so why not listen to your own advice?

Cal-hypo tablets lend themselves to safety, and are composed of solid chemicals that don’t require any dual contaminants. Bleach systems use a concentrated liquid solution that has the potential for leaks, bringing unnecessary chaos to your pump room.

Handling and Convenience
Keeping your pool properly chlorinated doesn’t have to be back-breaking work. Liquid bleach is stored in heavy drums—often times in 55-gallon barrels weighing 555 pounds. Personnel handling these heavy spill-prone canisters need to wear protective clothing and assume the risk of injury when transporting the drums.

Those aren’t concerns with tablet-based systems. Not only do the tablets come in manageable 55-pound pails, but they are easy to handle and make maneuvering with them a simple one-person job.

A Worry-Free Pump Room
One day a year. That’s about the extent that you’ll have to worry about providing maintenance to your tablet-based chlorinator, as they typically only require cleaning and maintenance once each year. In contrast, liquid-based chlorinators tend to be in need of constant repair. Not only do the feed pumps require regular maintenance, but tubing often leaks and gas locking of the pump isn’t uncommon.


Count on Chlorine
Chlorine levels in liquid bleach systems can be difficult to control, especially in hot weather, where rapid strength degradation is a common problem and the system loses efficacy as well as byforming products. But tablets produce a consistent level of chlorine strength, providing reliable control. And when stored properly, show little to no sign of strength degradation, losing only 5 percent of their strength in the first year.

Material Compatibility
Cal hypo tablets are also more pH-friendly than liquid bleach, requiring fewer adjustment chemicals, which in turn makes water balance easier to achieve. Tablet-based systems tend to be less corrosive, with a relatively dilute 100-300 ppm hypochlorite solution. Cal hypo tablets are also more neutral with a pH close to 10.5. Yet, liquid bleach systems have a much higher pH level—around 13—with a concentrated 120,000 ppm hypochlorite solution.

What Works?
While working with inefficient systems can be an aggravation, what matters most is which method proves to be more effective.

We’ll admit, as a certified Accu-Tab® Water Chlorination dealer we’re a bit biased. But seeing the advantages of tablet-based chlorination systems every day—and the extra time it creates in our schedule—we couldn’t think of life without it.

Topics: Calcium Hypochlorite Tablets

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