Robelle 8 ft Pool Cover Water Tubes 6-Pack — Heavy-Duty Black Double-Chamber Vinyl Weights

Robelle 8 ft. double-chamber black water tubes are heavy-duty vinyl weights that secure winter pool covers and resist punctures.

When closing your pool for the season, the right cover weights make the difference between a tidy winter setup and frequent maintenance. These Robelle 8 ft., 6-pack water tubes are engineered to hold pool covers in place through wind and snowfall, using a double-chamber design and robust vinyl construction that outperforms standard tubes.

How are these water tubes built to last?

The tubes are made from .33 mm thick vinyl that is rated about 107% heavier than typical industry materials, giving added puncture resistance and durability. Each tube has two separate chambers to reduce rolling and maintain coverage, so they stay where you place them around the pool perimeter.

• Heavy-duty .33 mm vinyl construction for enhanced durability
• Double-chamber layout minimizes tube rolling
• 6 tubes per pack provide continuous weighted coverage
• Black finish blends with most covers and hides dirt

How do I fill and maintain the Robelle cover weights?

Each tube includes a user-friendly, leak-resistant valve that installs easily with a garden hose. Fill the tube halfway with water to allow room for ice expansion; overfilling risks popping when water freezes. If a valve becomes stiff, a short blast from a hair dryer will soften it enough to close securely.

• Fill halfway to leave expansion room for freezing conditions
• Use a garden hose directly on the valve for quick fill
• Apply gentle heat (hair dryer) to loosen a tight valve before closing
• Inspect valves periodically for leaks and reseal as needed

Will these tubes keep my pool cover from falling in during winter storms?

Yes — their length and weight distribution are intended to anchor the cover along the entire edge, preventing sagging and pulling into the pool. The double chamber design keeps the tubes flatter and steadier so they resist rolling during wind events or shifting snow loads.

• 8 ft. length covers long sections without gaps
• Double chambers hold shape and reduce movement
• 6 tubes allow even spacing around most residential pools
• Black color helps conceal wear and water stains throughout winter

Who is this product for? Homeowners closing above-ground or in-ground pools who want a simple, dependable way to secure winter covers will benefit from these Robelle water tubes. They suit people who prefer low-maintenance, durable hardware with straightforward filling and storage, and anyone replacing lighter or damaged cover weights. With more than 50 years of Robelle experience in pool-closing supplies, this 6-pack is aimed at users seeking a rugged, no-fuss solution that reduces cover flapping and winter pool cleanup.