How to Vacuum Pool to Waste with a Cartridge Filter: A Comprehensive Guide

Vacuuming a pool to waste with a cartridge filter is a crucial method for removing large debris and sediment without clogging your filter cartridges. It involves bypassing the filter and directly draining the vacuumed water, along with the debris, out of the pool system. This guide provides a detailed walkthrough and answers frequently asked questions to ensure your pool remains sparkling clean.

Understanding Vacuuming to Waste

Vacuuming to waste is a vital technique for pool maintenance, especially when dealing with significant amounts of algae, leaves, or other heavy contaminants. Regularly running these materials through your cartridge filter can quickly reduce its lifespan and efficiency, requiring frequent cleaning and replacement. By vacuuming to waste, you avoid this issue and maintain optimal filtration performance.

Step-by-Step Guide: Vacuuming to Waste with a Cartridge Filter

This process assumes you have a standard above-ground or in-ground pool with a multiport valve, or a diverter valve setup that allows you to direct the water flow.

1. Preparation is Key: Gather your supplies. You’ll need your vacuum head, vacuum hose, telescopic pole, a backwash hose (or a regular garden hose long enough to reach a designated drainage area), and a hose clamp (optional). Make sure the vacuum head and hose are in good working order.

2. Attach the Vacuum Hose: Connect one end of the vacuum hose to the vacuum head. Attach the telescopic pole to the vacuum head.

3. Priming the Hose: Submerge the vacuum head and hose into the pool. Hold the open end of the hose near a return jet (the water inlet returning filtered water to the pool) and let the water fill the hose, expelling the air. This “primes” the hose, ensuring proper suction. Alternatively, if your pool has a dedicated priming port, use that. A primed hose is crucial for efficient vacuuming.

4. Connect the Hose to the Skimmer: Locate the skimmer closest to your pump and filter. Remove the skimmer basket. Insert the other end of the vacuum hose into the skimmer hole. You may need a skimmer vacuum plate adapter to create a tight seal, especially if your skimmer opening is larger than the hose.

5. Configure the Valve to “Waste”: This is the most crucial step. Turn off the pool pump. Locate your multiport valve (if equipped) or diverter valve. Set the valve to the “Waste” position. Double-check that the valve is securely in the “Waste” position. Incorrect valve settings can damage your equipment or send water back into the pool unfiltered.

6. Attach the Backwash Hose: Connect your backwash hose (or garden hose) to the waste outlet port on your pool’s filter system. Ensure the other end of the hose is placed in a designated drainage area that is away from your pool and any sensitive landscaping. Avoid directing the waste water towards your house foundation or a neighbor’s property.

7. Turn On the Pump: Turn on the pool pump. The pump will draw water from the pool, through the vacuum hose, and out the waste outlet.

8. Vacuum the Pool: Slowly and methodically vacuum the bottom of the pool. Overlapping your vacuum strokes ensures you cover the entire surface. Be mindful of any obstacles and avoid snagging the hose.

9. Monitor Water Level: Vacuuming to waste removes water from the pool. Keep a close eye on the water level, especially if you have a vinyl liner pool. Never allow the water level to drop below the skimmer or the pump could lose prime and potentially burn out.

10. Turn Off the Pump: Once you have finished vacuuming, or the water level is getting low, turn off the pool pump.

11. Return the Valve to “Filter”: Immediately return the multiport valve (or diverter valve) to the “Filter” position before restarting the pump.

12. Disconnect and Refill: Disconnect the vacuum hose from the skimmer. Replace the skimmer basket. Remove the backwash hose. Refill the pool to the appropriate water level.

Frequently Asked Questions (FAQs)

Here are answers to some common questions regarding vacuuming your pool to waste with a cartridge filter.

FAQ 1: Why Can’t I Just Vacuum to Filter?

While you can vacuum to filter, it’s not ideal for heavy debris. Large amounts of dirt, leaves, and algae can quickly clog your cartridge filter, reducing its efficiency and requiring frequent cleaning. Vacuuming to waste bypasses the filter, sending debris directly out, preventing clogging and extending the life of your cartridge filter.

FAQ 2: How Do I Know If I Should Vacuum to Waste?

You should consider vacuuming to waste if:

• You have a large amount of debris on the pool floor (leaves, dirt, algae).
• Your pool water is cloudy due to settled particles.
• You have just algaecided the pool and need to remove dead algae.
• You are performing a significant cleanup after a storm.

FAQ 3: Can I Vacuum to Waste with an Above-Ground Pool?

Yes, vacuuming to waste is possible with many above-ground pools, but it depends on your filtration system. You need a multiport valve or a diverter valve setup that allows you to select the “Waste” option. If your system lacks this, vacuuming to waste isn’t possible.

FAQ 4: Will Vacuuming to Waste Drain My Pool Completely?

No, but it will lower the water level. It’s crucial to monitor the water level while vacuuming to waste and stop before it gets too low. Never let the water level drop below the skimmer opening or the pump will lose prime and potentially be damaged.

FAQ 5: What Happens if I Forget to Switch the Valve Back to “Filter” After Vacuuming?

If you leave the valve in the “Waste” position after vacuuming and run the pump, the water will continue to be drained from the pool until it’s empty (or the pump loses prime). This is a serious error that can damage your pump and potentially your pool liner. Always double-check the valve position.

FAQ 6: Is it Possible to Vacuum to Waste with a DE Filter?

Yes, vacuuming to waste is a common practice with DE (Diatomaceous Earth) filters. The process is very similar, but the multiport valve will have a “Waste” setting specifically for this purpose. Always follow the manufacturer’s instructions for your specific filter type.

FAQ 7: How Often Should I Clean My Cartridge Filter?

This depends on pool usage and environmental factors. Generally, clean your cartridge filter every 2-6 weeks, or when the pressure gauge reads 8-10 PSI above normal operating pressure. Vacuuming to waste can reduce the frequency of cleaning.

FAQ 8: What if My Pool Doesn’t Have a “Waste” Setting on the Valve?

If your pool system lacks a “Waste” setting, vacuuming to waste isn’t feasible without modifications. You might consider adding a diverter valve or consulting with a pool professional about alternative solutions. Attempting to bypass the filter without proper equipment can damage your system.

FAQ 9: Can I Use a Robotic Pool Cleaner Instead of Vacuuming to Waste?

Robotic pool cleaners are excellent for general maintenance and can pick up fine debris. However, they are not as effective as vacuuming to waste for handling large amounts of debris or heavily contaminated water. Robotic cleaners primarily filter water; they don’t remove water directly.

FAQ 10: What is the Best Way to Dispose of the Waste Water?

Dispose of the waste water responsibly. Avoid draining it into storm drains, which can pollute waterways. Ideally, drain the water onto a grassy area away from your house foundation and sensitive landscaping. Check local regulations for any restrictions on pool water disposal.

FAQ 11: My Vacuum Hose Keeps Losing Suction. What’s Wrong?

Loss of suction can be caused by several factors:

• Air Leaks: Check for cracks or loose connections in the hose.
• Clogged Hose: Disconnect the hose and check for blockages.
• Improper Priming: Ensure the hose is fully primed before vacuuming.
• Dirty Skimmer Basket: Clean the skimmer basket regularly.

FAQ 12: Should I Shock the Pool After Vacuuming to Waste?

It’s generally a good idea to shock your pool after vacuuming, especially if you’ve removed a significant amount of algae or debris. Shocking helps to kill any remaining bacteria or algae and restores water clarity. Follow the instructions on your chosen shock product.

By following these steps and understanding the answers to these frequently asked questions, you can effectively vacuum your pool to waste with a cartridge filter, keeping your pool clean and your filter running efficiently for years to come. Remember to always prioritize safety and consult your pool equipment’s manual for specific instructions related to your system.