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Pool lights are designed to be safe by protecting swimmers from electrocution. These lights are made with waterproof fixtures and seals to prevent contact with the water.

Electrocution from pool lights is still possible, but rare. Faulty wiring or broken lighting equipment can make lights unsafe, so it’s important to replace lights as needed and have an electrician inspect and upgrade the wiring.

It’s a good idea to wait at least 24 hours after opening your pool before you swim in it. Pool opening often involves shocking the water, and the chemical levels need to come down a bit before it’s safe to swim. You can continue testing your water pH and chlorine levels if you’re in a rush. It’s wise to wait until your chlorine levels drop to under four parts per million (ppm) and you have a water pH of between 7.2 and 7.8. You can artificially lower your water pH to speed up the process.

An easy way to know whether your sand filter has enough sand is to check how full the filter is and what the sand looks and feels like. The filter container should be two-thirds to three-quarters full of sand. Look for interior marks indicating the ideal sand level. If you put your hand into the sand, it should flow through your fingers without clumping. The filter pressure gauge is also an easy indicator—the right amount of sand leads to normal pressure, while too much or too little sand can cause high or low pressure.

Don’t worry if your pool is still cloudy right after shocking it. Some shocking products will leave your pool cloudy for a day or so after using them. However, if your pool is still cloudy several days after shocking it, it could be due to poor filtration, low chlorine, or one of the other problems outlined above. If you’ve tried our fixes but still can’t clear the cloudiness, call a pool repair professional.