FILTER OUT THE UNSEEN TO KEEP WATER CLEAN
Why you need a pool filter
Your pool’s filter has an important job – to keep your pool clean. Although chlorine and other sanitizers destroy bacteria, algae and other contaminants, the pool filter is what removes them from your pool water, ensuring you have clean, clear water to enjoy.
What gets filtered out
Pool filters are classified by the size of contaminants they can collect. The measurement used is known as micrometer (micron for short), which is just one millionth of a meter. Considering a single strand of human hair measures just 50 microns and bacteria can be as small as 2 microns, having a pool filter that can filter out the smallest contaminants from your pool water is essential to its clarity.
Which filter is the best for you
Pool filters are made from various materials that can filter out these micro contaminants, choosing which one is the best for your pool comes down to price, pool size, required maintenance and overall cost of clarity.
Choosing the right size filter
Whether you decide on a Sand Filter, a Cartridge Filter or a D.E. Filter, it’s important to select a pool filter that is sized correctly for your pool.
Determining what size filter is best for your pool comes down to how big your pool is. The size of your pool determines the size of your pump, which in turn, determines the size of your filter.
In, general, a bigger filter is typically better as it means:
- Longer filter cycles or time between backwashing.
- Longer lasting filter media (sand, cartridge or D.E.)
Pump and filters are both measured by the GPM (Gallons Per Minute), otherwise known as the flow rate. The flow rate on the filter must be rated at least the same GPM as your pump, or higher. If you choose a filter that is too small, the pump will generate too much pressure, causing the filter to break and possibly burn out your pump.
To err on the safe side, it is always best to consult with your local pool professional for advice and guidance on the best filter based on the size of your pool and the size and type of pool pump currently installed in your pool pad.
Pentair offers a wide selection of pool and spa filters that come in a wide range of designs to keep pools sparkling clean and healthy. We offer diatomaceous earth (D.E.), cartridge and sand filter products.