Frequently Asked Questions

Poolprimo is an independent site published by GOOWEB LLC. It is not run by a pool builder, a chemical brand or a retailer, so the guides are written to help you understand your pool or hot tub rather than to sell a product.

Each guide is researched from manufacturer manuals and official sources, then written with the help of AI writing tools and checked before publishing. Where a source matters, the guide links to it so you can read the original.

New guides are added regularly. Seasonal topics such as opening and closing a pool are published ahead of the time you will need them.

Email [email protected] with the page address and what looks wrong, or with the topic you would like covered. The advice on this site is general information and does not replace a qualified pool professional, electrician or your equipment manual.

Most owners test free chlorine and pH a few times a week in swimming season, and more often after heavy use, storms or very hot weather. Other readings such as alkalinity, calcium hardness and stabilizer can be checked less often. Your test kit and product labels will give the details.

Cloudy water usually comes from weak sanitizer, unbalanced pH or alkalinity, or a filter that is dirty or not running long enough. Testing the water first tells you which of these to fix, instead of guessing and adding more chemicals.

Sand filters trap debris in a bed of sand and are cleaned by backwashing. Cartridge filters use a replaceable or washable pleated element and are rinsed with a hose. DE filters use a powder coating on grids and filter very fine particles, but need more upkeep.

The goal is to move all of the water through the filter at least once a day, and the run time depends on your pump, pool size and season. Many owners run it for several hours daily and longer in hot weather. Check your pump manual for guidance.

Hot tub water is usually drained and replaced a few times a year, depending on how often the tub is used and how well the water is kept clean and balanced. Foam, odors or water that stays cloudy are signs it may be time. Your manufacturer's manual gives the recommended schedule.

Many owners close the pool once water temperatures stay consistently low in the fall, because cool water helps stop algae growth. Clean the pool, balance the water and follow your cover and equipment instructions. If you are unsure about draining lines, ask a local pool professional.