Vacuuming a pool with a cartridge filter requires a slightly different approach than with other types of filters, primarily because you generally cannot backwash a cartridge filter to get rid of the debris you vacuum up. Here's how to do it effectively, incorporating a "vacuum to waste" method if necessary:
There are two primary ways to vacuum a pool with a cartridge filter:
Method 1: Regular Vacuuming (For Light Debris)
This method is suitable for routine cleaning when you don't have excessive amounts of algae or debris.
- Prepare Your Equipment:
- Attach your vacuum head to the telescopic pole.
- Connect the vacuum hose to the vacuum head.
- Prime the Hose: Submerge the vacuum hose completely into the pool water to remove all air. A hose full of air will cause you to lose suction.
- Connect to Skimmer: Attach the other end of the vacuum hose to the skimmer. You may need to remove the skimmer basket first. Some skimmers have a designated vacuum port.
- Begin Vacuuming: Slowly and methodically vacuum the pool floor, overlapping each pass slightly.
- Monitor Filter Pressure: Keep an eye on your filter's pressure gauge. If the pressure increases significantly, it indicates that the cartridge filter is becoming clogged. Stop vacuuming and clean the filter cartridge.
Method 2: Vacuum to Waste (For Heavy Debris/Algae)
If you have a significant amount of debris, such as algae bloom or a large accumulation of leaves, vacuuming directly through the filter will quickly clog the cartridge. In this case, you might need to implement a "vacuum to waste" method, if your system allows. Note that this will lower the water level in your pool.
- Check for Backwash Valve: According to Swim University, some cartridge filter systems might allow you to hook up a backwash hose. Examine your filter system to see if it has a port to which you can connect a backwash hose.
- Configure for Waste (If Possible): If a backwash valve exists:
- Attach a backwash hose to the designated port.
- Set the valve to the "waste" or "backwash" position. Important: Refer to your filter's specific manual for the correct procedure.
- Alternative Method (Removing the Cartridge): According to Swim University, if a backwash valve does not exist:
- Take the cartridge out of the filter.
- Open up the bottom drain.
- Vacuum the Pool: Vacuum slowly and deliberately, as you are now sending the water and debris directly out of the pool.
- Monitor Water Level: Keep a close eye on the water level in your pool. Do not allow the water level to drop too low, or you risk damaging your pump.
- Stop and Refill: When you've removed most of the debris, turn off the pump. Refill the pool to the appropriate level.
- Resume Normal Filtration: Return the valve to the "filter" position (if applicable), re-install the cartridge filter (if removed), and resume normal pool operation.
- Clean the Filter: After vacuuming, even with the waste method, it's still a good idea to clean your cartridge filter.
Important Considerations:
- Filter Cleaning: After each vacuuming session, clean your cartridge filter. Hose it down thoroughly to remove any trapped debris.
- Water Chemistry: After vacuuming to waste, test and balance your pool water chemistry, as you will have removed a significant amount of water.
- Pool Type: The vacuuming process might vary slightly depending on whether you are using an above-ground or inground pool.
- Manufacturer's Instructions: Always consult your pool filter and vacuum equipment manuals for specific instructions and safety precautions.
