How to Change Used P1 Culligan Water Filter [Easy DIY Guide]
It is important to have clean water at home. A water filter helps to remove impurities. The P1 Culligan water filter is popular. But, it needs changing when used. Here, we will learn how to change a used P1 Culligan water filter. The steps are simple and easy to follow.
Why Change Your Water Filter?
Water filters trap dirt and impurities. Over time, they get clogged. This reduces their effectiveness. Changing your water filter ensures clean water. It also keeps your filter system working well. Do not wait too long to change it.

Credit: www.waterfilters.net
When to Change Your P1 Culligan Water Filter
Check the user manual for guidance. Typically, change the filter every 6 months. If your water tastes bad or the flow decreases, change it sooner. Always follow the manufacturer’s advice.
Tools You Will Need
- New P1 Culligan water filter
- Bucket or towel
- Wrench (if needed)
- Gloves (optional)
Step-by-Step Guide to Change the Filter
Step 1: Turn Off The Water Supply
Locate the water supply valve. Turn it off to stop water flow. This prevents leaks and spills.
Step 2: Relieve Pressure
Open a faucet near the filter. This relieves pressure in the system. It makes it easier to remove the old filter.
Step 3: Remove The Old Filter
Place a bucket or towel under the filter housing. This catches any water that may spill. Twist the filter housing counterclockwise. Use a wrench if it is too tight. Carefully remove the old filter.
Step 4: Clean The Filter Housing
Check the filter housing for dirt. Rinse it with clean water. Make sure it is clean and ready for the new filter.
Step 5: Install The New Filter
Take the new P1 Culligan filter. Place it in the filter housing. Ensure it is seated properly. Twist the housing clockwise to secure it. Use a wrench if needed, but do not overtighten.
Step 6: Turn On The Water Supply
Turn the water supply valve back on. Check for any leaks around the filter housing.
Step 7: Flush The New Filter
Open a faucet and let water run for a few minutes. This flushes out any air and loose particles. Your new filter is now ready to use.
Maintenance Tips
- Change your filter on time.
- Keep a spare filter handy.
- Check for leaks regularly.
- Clean the filter housing during each change.

Credit: culligandiy.com
Frequently Asked Questions
How Often Should I Change My Culligan P1 Filter?
Change your Culligan P1 filter every 2-3 months for best performance.
Can I Replace The Culligan P1 Filter Myself?
Yes, replacing the Culligan P1 filter is easy and can be done yourself.
What Tools Are Needed To Change The Culligan P1 Filter?
You only need a filter wrench to change the Culligan P1 filter.
Where Is The Culligan P1 Filter Located?
The Culligan P1 filter is usually in the main water filter housing.
How Do I Know When To Replace My Culligan P1 Filter?
Check for reduced water flow or taste changes to know when to replace the filter.
Is It Necessary To Turn Off Water Supply To Change Culligan P1 Filter?
Yes, turn off the water supply before changing the Culligan P1 filter.
Conclusion
Changing your P1 Culligan water filter is easy. Follow these steps for clean water. Regular maintenance ensures your filter works well. Enjoy fresh, clean water at home.