how to backflush pool filter

Author: Poolking - Swimming Pool Equipment Manufacturer

How to Backflush Pool Filter: A Comprehensive Guide

Pool filters are essential in maintaining the cleanliness and clarity of a swimming pool. However, like any other equipment, pool filters can experience problems and require periodic cleaning to function effectively. One of the most common ways to clean a pool filter is through backwashing or backflushing. In this article, we'll explore what backflushing is, when to do it, how to backflush pool filter and the benefits of this technique.

Understanding Backflushing

Backflushing is a method of cleaning a pool filter by reversing the flow of water through the filter media, which dislodges and flushes out built-up debris and contaminants. This technique involves opening and closing filter valves, which can cause the water to flow backward through the filter, hence the name "backflushing." By doing so, it thoroughly cleans the filter media and enhances the pool's water quality.

When to Backflush

The frequency in which you should backflush your pool filter depends on several factors, including the size of the filter, the size of the pool, and how often it is used. A general rule of thumb is to backflush the filter when the pressure gauge reads 8 to 10 pounds above the clean, starting pressure. You can find the starting pressure on your filter's manual or by observing the pressure gauge after cleaning the filter. Backwashing the pool filter too often will reduce the filter media's lifespan, while doing it too little can reduce its effectiveness, which may harm the pool's water balance.

How to Backflush Pool Filter

Backflushing a pool filter is not a complicated process, however, it requires careful attention to detail to prevent problems. Here are the steps to follow when backflushing your pool filter.

Step 1: Turn off the pump

Before beginning the backflush process, switch off the pool pump to prevent unnecessary damage.

Step 2: Set the valve handle to "backwash"

Turn the valve handle from its current position to the "backwash" setting. Doing this will reverse the flow of water through the filter.

Step 3: Turn the pump on

After setting the valve handle to backwash, turn the pump back on, and allow it to run for three to five minutes, or until the water flowing out of the waste pipe is clear.

Step 4: Turn off the pump

Once the water flowing out of the waste pipe is clear, turn off the pool pump.

Step 5: Set the valve handle to "rinse"

Switch the valve handle to the "rinse" setting, and turn the pump back on for 30 seconds to one minute. This flushes out any remaining debris from the backwash step and prevents them from returning to the pool.

Step 6: Turn off the pump

After the rinse cycle is complete, turn off the pool pump and return the valve handle to its original position.

Benefits of Backflushing Pool Filter

Finally, let's look at the benefits of regularly backflushing your pool filter.

1. Maintains pool water quality

Backflushing removed contaminants and debris that accumulate in the pool filter. This ensures the pool water remains clear and healthy for swimming.

2. Increases the lifespan of the pump and filter

Cleaning the pool filter regularly through backflushing reduces the pressure and strain on the pool pump and filter, thus increasing their lifespan.

3. Saves money

By reducing the pressure on pool filters and pumps, backflushing can reduce the cost of maintenance and replacement for these items.

4. Maintains energy efficiency

A backflushed pool filter requires less energy to operate than one that is clogged and working at full capacity. This results in a more energy-efficient pool system and lower electricity bill.

Conclusion

Backflushing is an essential part of maintaining a clean and healthy swimming pool. By following the above steps, and the frequency appropriate for your situation, you can backflush your pool filter without experiencing any problems. Doing so will increase the lifespan of your pool pump and filter, save you money, and maintain a clean, clear pool for your family and friends to enjoy.