Excellent post

Prep some dry swimming pool shock, it stays stable much longer than liquid bleach. It must be unscented and about 50% to 80% Calcium Hypochlorite in it's dry state.

http://www.amazon.com/Swim-Chlorine-Poo ... 949&sr=8-7

post47489.html?hilit=swimming%20pool%20shock#p47489

I can buy pool shock cheap at the end of summer cheap . glad to find this out .

Here's some gov't info on using calcium hypochlorite to disinfect water:




You can use granular calcium hypochlorite to disinfect water.
http://water.epa.gov/drink/emerprep/emergencydisinfection.cfm

You can use granular calcium hypochlorite to disinfect water.

Add and dissolve one heaping teaspoon of high-test granular calcium hypochlorite (approximately ¼ ounce) for each two gallons of water, or 5 milliliters (approximately 7 grams) per 7.5 liters of water. The mixture will produce a stock chlorine solution of approximately 500 milligrams per liter, since the calcium hypochlorite has available chlorine equal to 70 percent of its weight. To disinfect water, add the chlorine solution in the ratio of one part of chlorine solution to each 100 parts of water to be treated. This is roughly equal to adding 1 pint (16 ounces) of stock chlorine to each 12.5 gallons of water or (approximately ½ liter to 50 liters of water) to be disinfected. To remove any objectionable chlorine odor, aerate the disinfected water by pouring it back and forth from one clean container to another.

The chlorine taste and smell can be eliminated simply by leaving the water in an open container for at least 12 hours.

RECOMMENDED READING! The following cautions are from the EPA, so it's oke to share. The full PDF can be found at the link, provided.




Safe Storage and Handling of Swimming Pool Chemicals
http://www.epa.gov/osweroe1/docs/chem/spalert.pdf

Hazard Triggers
The purpose of this Alert is to provide guidance associated with normal operating conditions and routine tasks for storage and handling of pool chemicals. It does not address the precautions to be taken by first responders in case of a fire, a large spill, or the release of toxic vapors.

Wetting: Under normal circumstances, pool chemicals are intended to be added to large quantities of water. If, instead, a limited volume
(amount) of water is added to a chemical, an unwanted reaction may occur, resulting in an increase in temperature and the release of toxic gas.
Even a small amount of water splashed on the chemical may in some cases trigger a strong reaction. The main exception to this rule concerning
water addition is when very large quantities of water are needed for fire fighting, as discussed below. Although the chemicals are usually packaged in plastic bags that are stored in sturdy cartons or drums, accidents have occurred when water leaked into damaged or open containers.
Possible sources of water entry have been traced to:

• Rain water from a roof leak or from an open or broken window;
• Wet floor when the stored chemicals were not elevated off the floor;
• Leakage from fire suppression sprinkler system; or
• Hose-down water generated during area cleanup.

There are other sources of water that may come in contact with pool chemical packages, including high humidity in summer weather. However, the effects of humidity are more likely to be slow-acting, with the rate of temperature buildup and chlorine gas release being less severe.

Chlorine is corrosive to metals such as steel and copper. Instances have been reported where exposed water piping has become corroded causing leaks, and also where metal storage shelves have corroded and collapsed, leading to chemical spillage.

Improper Mixing: The most common pool chemicals are inherently incompatible with each other. Intentional or accidental mixing of
incompatible chemicals is likely to lead to a chemical reaction that may generate temperatures high enough to ignite nearby combustible materials.
Mixing can also lead to the release of highly toxic and corrosive chlorine gas. Reactions have also been traced to the mixing of old (partiallydecomposed) and new chemicals of the same type. The mixing of pool chemicals with completely unrelated materials such as swept material from the floor, oily rags, and other miscellaneous materials have been known to cause strong reactions with the potential for a resulting fire.

Improper chemical mixing incidents have occurred when:

• Tools and equipment used to handle one chemical were used with a different chemical before being cleaned;
• Spilled substances (e.g., from damaged containers or from sloppy handling) and other miscellaneous substances on floors were swept up together and mixed; and
• Containers, residues, or wastes are disposed resulting in inadvertent mixing in disposal containers or at waste disposal sites.

Liquid chemicals, such as sodium hypochlorite (bleach), if spilled, can leak into other containers or seep into cracks in the floor. Liquids, because of
their properties, can create hazards not associated with solid or granular products and must be carefully handled.

Hazard Control

Facility management is responsible for knowing and understanding the hazards associated with these chemicals and ensuring that pool chemicals are safely stored and handled. Hazardous substances are capable of being safely handled day-after-day through a management system that ensures that good, written procedures are prepared, posted, and followed by trained employees. Also, the facility needs to be properly designed and maintained. Finally, facility management should very carefully plan for emergencies and work with first responders to mitigate incidents that occur.

Recommendations for addressing the major hazards associated with pool chemicals are described below. Keep Pool Chemicals Dry. Facility management should design and maintain designated areas for pool chemical storage so that water does not come in contact with containers or packaging.

Any evidence of potential water entry from the following possible sources should receive prompt corrective attention:

• Roof, windows, and doors;
• Wall and floor joints;
• Water pipes or hoses and sprinkler systems; and
• Drains.

You should look for ways to prevent water contact with stored pool chemicals such as:

• Close containers properly;
• Cover opened or damaged packaging;
• Store chemicals away from doors and windows;
• Ensure that there are no roof leaks, open or broken windows, or leaks from water pipes, hoses, or the sprinkler system;
• Ensure that floors are sloped to keep water drained away;
• Store chemicals on shelves or pallets to keep containers off the floor;
• Use waterproof covers on packaging;
• Exercise particular caution to prevent water contact with stored chemicals any time water is used for cleanup of floor areas near stored packages; and
• Ensure that water will not back up from faulty or clogged floor drains.

Avoid Chemical Mixing. You should conduct a review of chemical storage arrangements and chemical handling tasks to identify situations where chemicals could be intentionally or accidentally mixed:

• Separate incompatible substances; avoid storing containers of liquids above containers of other incompatible substances;
• Do not mix old chemicals with fresh chemical, even if they are the same type;
• Consider separate, designated tools for each chemical. Handle only one chemical at a time and make sure that tools used with one substance are not used with another unless all residues are removed;
• Use separate, designated containers for cleanup of spilled materials to avoid inadvertent mixing of spilled substances. Consult your local hazardous waste disposal facility for more detailed information on proper waste disposal; and
• Make chemical storage area housekeeping a priority. Don’t allow rags, trash, debris, or other materials to clutter hazardous material storage area. Keep combustible and flammable substances away