The Heart of the Pool
In an in-ground pool, water has to go through a filtration process before it flows back into your pool. Without a working pump, this isn’t possible. Water is regularly drawn from the pool from suction created by your pool pump. The pump then sends the water through a filter, main drains and skimmer. This process filters out impurities and any undesirable things you may find in a pool.
The Dynamic Duo – your Pump and Filter!
Why is this duo so important? Simply put, they ensure that your pool is kept clean and safe. If you didn’t have a working pool pump and filter, you would find your water unsafe to swim in – full of bacteria and unhealthy chemistry levels. Your pump and filter turn over your water keeping it in tip-top shape. If either part breaks down, you should stop using your pool until it’s fixed.
Borrowed from Hayward's website