When preparing your above-ground pool for winter, a pool pillow is a crucial accessory to ensure your pool remains in good condition through the colder months. For an 18-foot round pool, selecting the right size pool pillow is vital to prevent ice damage and protect your pool liner and walls. In this guide, we’ll explore what a pool pillow is, its benefits, and how to choose the perfect size for your 18-foot pool.
What is a Pool Pillow?
A pool pillow, also known as an air pillow, is an inflatable device placed in the center of your pool before adding a winter cover. It acts as a cushion, compensating for the pressure caused by ice expansion during freezing temperatures. Without a pool pillow, ice can form a solid sheet that exerts pressure on your pool walls, potentially causing damage.
Why Do You Need a Pool Pillow?
Here are some essential reasons to use a pool pillow for your 18-foot pool:
- Ice Expansion Protection: Water expands when it freezes. A pool pillow creates a buffer that reduces the risk of ice damaging your pool walls or liner.
- Prevents Pool Cover Sagging: By elevating the center of your pool cover, the pillow helps water and debris slide off the edges, preventing sagging and stretching of the cover.
- Reduces Staining and Algae Growth: With a properly fitted pool pillow and cover, water and debris stay outside the pool, reducing the chances of staining or algae formation.
- Eases Spring Cleaning: Pool pillows simplify the process of opening your pool in the spring by keeping it cleaner during winter.
Choosing the Right Size Pool Pillow for an 18-Foot Pool
The size of the pool pillow you need depends on the pool’s diameter and how much of a buffer you want against ice expansion. For an 18-foot round pool, here are some key considerations:
- Standard Recommendations:
- For an 18-foot pool, a pool pillow that measures 4 feet by 8 feet is generally recommended. This size provides adequate coverage to protect the pool structure and keep the cover elevated.
- Bigger Is Not Always Better:
- While you might think a larger pillow offers more protection, overly large pillows can cause uneven distribution of the cover and make it challenging to secure properly.
- Multiple Small Pillows vs. One Large Pillow:
- Some pool owners prefer using two smaller pillows, such as 4 x 4 feet pillows, instead of a single large one. This approach can offer more flexibility in positioning and even distribution.
- Shape Considerations:
- Rectangular pillows are the most common and effective for round pools. However, you can also find circular pillows designed for specific pool shapes.
How to Install a Pool Pillow in an 18-Foot Pool
Once you’ve selected the right size pillow, proper installation is crucial for its effectiveness. Follow these steps:
- Inflate the Pillow:
- Inflate the pool pillow to about 60-70% of its capacity. Overinflation can cause the pillow to pop under pressure, while underinflation may not provide sufficient support.
- Secure the Pillow:
- Use strong ropes or grommets to secure the pillow to the pool’s edges. Position it in the center of the pool to evenly distribute the pressure.
- Add the Winter Cover:
- After securing the pillow, install the winter cover over the pool. Ensure it is tight and well-secured to prevent wind from displacing the pillow.
Tips for Maintaining Your Pool Pillow
- Choose Durable Materials: Opt for pool pillows made from heavy-duty vinyl or reinforced materials to withstand harsh winter conditions.
- Regular Checks: Periodically check the pillow during the winter to ensure it remains inflated and in position.
- Proper Storage: After winter, deflate the pillow, clean it, and store it in a dry place to prolong its lifespan.
Frequently Asked Questions
- What if my pool pillow moves during the winter?
If the pillow shifts, try repositioning it by adjusting the securing ropes. Proper tensioning during installation minimizes this issue. - Can I use a homemade pool pillow?
While some pool owners use items like inner tubes, dedicated pool pillows are specifically designed for durability and effectiveness in winterizing pools. - Do I need a pool pillow for a small above-ground pool?
Yes, even small pools benefit from a pool pillow, as ice expansion can still cause damage. - What happens if I don’t use a pool pillow?
Without a pool pillow, the risk of structural damage to the pool walls increases due to ice expansion, and the pool cover is more likely to sag and collect debris.
Conclusion
For an 18-foot round pool, a 4 x 8-foot pool pillow is the ideal size to protect against ice damage and ensure your pool cover remains secure throughout winter. Choosing the right size and installing it correctly can save you from costly repairs and make pool maintenance a breeze when the swimming season returns. By investing in a high-quality pool pillow and taking the time to install it properly, you can enjoy peace of mind knowing your pool is well-protected during the off-season.