Cleaning your Sand Filter in 9 Easy Steps

Cleaning your Sand Filter in 9 Easy Steps

Clean your sand filter at least once a season to make sure it keeps working properly. If you do not follow these 9 easy steps, you may feel like cleaning your sand filter is a daunting task. At Energy Center-Manhattan Pool, we recommend you clean your sand filter when you close the pool or if you did not do that, when you open your pool. It is imperative to remember that anytime you move the multiport, the pump must be turned off. It will ensure there is no water flowing through the system while you work. The following is a step-by-step guide on how to clean your sand filter in a quick and easy manner:

1. Backwash the filter.

Locate the multiport, which is typically on top of the sand filter, some are on the side. Set the multiport in the “Backwash” position. Remember, before turning the multiport into the backwash position, the pump needs to be shut off. After that, attach the backwash hose to the waste outlet. Then turn on the pool pump and let it run for approximately 2-3 minutes or until the sight glass appears clear. This is the process that flushes out the scum and debris trapped in the sand filter during its filter cycle. 

2. Rinse the filter.

Upon completion of backwashing, turn off the pump and set the multiport valve to “Rinse.” This process will help settle the sand bed and flush out any debris that may still be present. Run the pump for 10-15 seconds.

3. Shut off the pump.

When the rinse cycle is complete, turn off the pool pump again. The purpose of this step is to help you prepare for the next step, which is to remove the filter assembly. 

4. Open the filter.

Remove the filter’s top assembly – you may have screws or clamps depending on the type of sand filter you purchased. Please refer to the user’s manual or manufacturer’s manual if you are unsure of how to remove the filter assembly.

5. Inspect and clean the sand.

Make sure to carefully examine the sand bed for any signs of clumping, channeling, or clogging. If you spot any of these issues, it may be time to replace the sand. As long as the sand appears to be clean, you can proceed to the next step.

6. Rinse the sand.

Professional cleaning of the filter can reduce the risk of damage and ensure that the filter works correctly. We have a team of experienced technicians that can help with this task. They can also advise on how to maintain the filter in the future. However, here are some tips to help you clean the filter yourself:

Carefully rinse the sand bed with a garden hose, being mindful not to disturb it too much as this may create channels or uneven areas. This step will effectively remove any remaining debris. If you choose to use Bioguard’s Strip Kwik followed by Kleen It for cleaning your sand filter, we highly recommend it. Bioguard has provided us with a helpful mnemonic – just like showering, first strip then clean. 

Use Strip Kwik first to clean the filter itself of grease and oil, which keeps it working at its best. Apply this directly to the filter- if opened and let it soak for approximately one hour, then backwash (see step 1). 

Re-open the filter and begin to pour the entire bottle of Kleen It to remove metals, dirt, and scale. Keep it soaking for one hour, then backwash (see Step 1). It is also useful for cleaning outdoor furniture, pool equipment, vinyl, plastic, and rubber surfaces as well as spa surfaces.

7. Reassemble the filter.

Once the sand has been rinsed thoroughly, carefully reassemble the filter following the manufacturer’s instructions. Verify that all parts are securely in place.

8. Prime the pump.

This may or may not be required by your system, but it is helpful to keep in mind just in case. To prime the pool pump, fill the pump basket with water. This process will help create a vacuum and allow the pump to function optimally.

9. Restart the system.

Verify the pump is turned off and set the multiport valve to the “Filter” position, then switch the pump back on. The filter is now ready to operate. Monitor the pressure gauge to ensure pressure maintenance is at the desired level. Once the pressure stabilizes, the system is ready to use. Adjust the output valve to control the flow rate.



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