Having a balanced water chemistry is one of the most important aspects of pool maintenance. If your chemistry is off-balance, you could suffer from cloudy, bacteria-infected water, which in turn can overwork the filter, pump, or skimmer.
How the chemicals are administrated is an important aspect that is often overlooked. Make sure to thoroughly read all chemical labels before putting them in your pool because there will be specific instructions concerning the amounts and whenever you will need dilute the chemical before putting it in your pool. If you switch brands or sizes, make sure to read how much of the chemical should be put in certain pool sizes because it could be concentrated differently.
How you store the chemicals is also important. Many chemicals need to be stored out of sunlight because this could cause reactions that will dilute the chemicals and reduce their effectiveness. Also, even if they are the same chemical, such as chlorine, never mix different forms together. So, do not mix chlorine tablets with standard chlorine or chlorine shock. These different forms will be in different concentrations and perform different functions, and combining them can put everything off balance.
Do not get creative with the chemical ranges. Your pH, alkalinity, calcium hardness, and other levels are expected to be in a specific range, and otherwise instructed otherwise by a maintenance professional, stick to that range. Some pool owners try to play with the balance but the truth is that this is rarely necessary. The pH and alkalinity balance actually plays an important role in chlorine's effect, and chlorine and other sanitizing chemicals can not do their job without pH and alkalinity is just right. This is true for stabilizer, too. If these chemicals are not in the correct ranges, chlorine could just burn off without actually doing any sanitizing.
Make sure your pool chemicals spread to every part of your pool. If your pool has a “dead area” where chemicals are not being circulated, you are at risk for cloudy water, pollution, or algae growth. There are a few things you can do to prevent this. Start running your pool pump before you add the chemicals and a few hours after as well. Add the chemicals where the water is being pumped back into the pool so that the chemicals will be spread through the pool. Cleaning out your skimmer and other parts of your circulation system can spread chemicals more effectively as well. However, do not backwash filters too soon after adding chemicals because you may be removing the chemicals that you just administered.
Another tip to having healthy water chemistry is to always have all the chemicals and other pool and spa supplies you need to keep your pool in pristine condition. If a pool cleaner or another appliance is out of order, the whole pool is affected as well.