Chlorine bleach works most effectively in hot water. It can be used in warm and cold water but you may not see the results you expect.
The cold water, anything below 65°, has an impact on the ability of the chemicals to dissolve properly. I would recommend using liquid chlorine if you have to shock in lower temperatures. You can dissolve granular shock in warm water. Perhaps it will work if you completely dissolve it before adding it to the pool.
Put on protective gear when diluting or using bleach as it irritates mucous membranes, the skin and the airway. Cold water should be used for dilution as hot water decomposes the active ingredient of bleach and renders it ineffective.
The best thing about this dry liquid chlorine formula is that it dissolves very rapidly, even in cold water temperatures. We've packaged it in an easy to pour bottle, just walk it around the pool – no need to pre-dissolve.
Your Salt System and Winter Temperatures
For most Pentair Intellichlor systems, the setting is the water temperature dropping below 52 degrees. When the sensors note the water temperature dropping below that value, the system will effectively shut off and stop their Chlorine production.
The warmer the water, the faster chlorine (and all other chemical reactions) can go, so it makes sense that chlorine gets used up faster in warmer water.
Water temperatures are slow to heat up, and just as slow to cool down. Water is very "stubborn" to change temperature. It takes 4 times the energy to heat up water than to heat air. Water also "feels" colder because water is a more efficent medium than air to cool our body down.
On a monthly basis throughout the winter, you'll need to perform some routine chemical maintenance. Never use chlorine tablets during the winter: you'll want to opt for Assault 73 Shock or Quick Shock granular chlorine once a month (1 pound per 10,000 gallons.)
You do not need as much pool shock during winter as you normally would to achieve the same effect. The National Institutes of Health found that at normal summer water temperatures, the efficacy of chlorine was 2-3 times less than for water temperatures around 50 degrees.
In the fall, make sure to add chlorine and algaecide to your pool for over the winter. Don't add too much chlorine though. If the chlorine level is too high over the winter, you can bleach the liner. As soon as the water thaws in the spring, pop open a corner of the cover and add liquid chlorine to the pool (1–2 gal.
For household cleaning and disinfecting, Clorox® Regular Bleach2 is the most cost-effective disinfectant and can be used in hot, warm or cold water.
Chlorine bleach works most effectively in hot water. It can be used in warm and cold water but you may not see the results you expect.
How you use bleach is the key to either making or breaking its cleaning power. By using hot water instead of cold/tepid water to create a solution, you can render the active ingredients in bleach ineffective. So for bleach that works, always make sure you dilute it in cold/tepid water.
2 ppm of Chlorine will take up to 4 and a half days or around 110 hours to evaporate from 10 gallons of standing water. Ultraviolet light, water circulation, and aeration will speed up the evaporation process dramatically. Chlorine will last between 6 and 8 minutes in 10 gallons of boiling tap water.
Pools with water that is too warm can be harmful to swimmers in a number of ways dehydration, muscle cramps and overheating of the body are just some of the complications athletes can suffer from when the water is too warm.
For the greatest protection against algae, bacteria, and cloudy water, Intex pools should maintain a chlorine level of 2.0-4.0 ppm at all times. If you opted for the Intex Salt Chlorinator, you can make your own chlorine by adding the correct amount of Pool Salt to the water.
You should have a freeze protection device that will automatically turn the pump on when the temperature drops to around 34 degrees. A freeze protector will keep your pool running as long as the temperature remains close to freezing.
Cold water is the factor we have to adjust for in pool winterization. It slows chemistry, lowers sanitizer demand, and most importantly, lowers the LSI. Remove phosphates at least a week before pool winterization so you have time to come back and vacuum, and clean the filter.
Here's an expert tip: Put pool salt on top of the pool cover to help melt the snow and ice. Don't want to clean off all of those pesky crystals? Turn on the cover pump the very next day to remove the residue and melted snow. This trick proves useful for homeowners with a salt water or chlorine pool.
A saltwater pool is an alternative to a traditional chlorine pool. Although you don't add chlorine tablets to a saltwater pool, it does still contain chlorine. It just has a smaller amount that's generated through the filter system. A saltwater pool contains 10 times less salt than the ocean.
Night Air is Cooler
Sometime, the air temperature will drop even lower than the pool water. Since the pool water temperature will not change that much within one or two hours, the cooler air makes the water feel warmer than it was previously.
If you're looking for a perfect pool temperature, not too hot, not too cold, 77 – 82 degrees (25 – 28°C) may be the way to go according to most recreational swimmers. In most cases, pools should be comfortable, and the average swimmer will agree with this.
That's no fun either. In general, the most common pool temperature for a residential pool used for leisure is between 78°F and 82°F (26°C and 28°C). But it's important to know that some temperatures can be dangerous for certain at-risk groups of people, and can make your pool vulnerable to contaminants.
Temperature affects the power of disinfection, how disinfection slows the growth and impedes the survival of microorganisms. When water has a pH value higher than 8.5, higher temperatures multiply the bactericidal effectiveness of chlorine, as well as its effectiveness in killing some viruses.
Experts recommend a water temperature of between 120 and 125 degrees to prevent scalding and for washing on the 'hot' cycle for maximum whitening. You will have to play around with your water temperatures a little bit to find the optimum setting for you, but generally hotter is better for whitening.