Aqua Blocks were invented by a frustrated pool owner, upset about having to replace his pool cover water bags so often. Aqua Bloks act as inground pool cover weights; are stackable and last virtually forever. The original Aqua Block pool cover weight was a window box with the drain holes plugs. Later, a snap-on lid was added to keep the water inside the Aqua Block fresh and clean all winter.

Vinyl water bags can begin to leak over time, and some leak right out of the box. Stop replacing water tubes every year! Aqua Blocks cost more to buy, but they will never leak, and are much easier to fill and drain, plus they don't get all gross and slimy like water bags.

At 36 length, they are small enough to move around, even when full of water. Each Aqua Block includes it's own snap-on cover or lid. In the springtime, just pop off the lids to drain, stack and store your Aqua Blocks, so easy! 6 aqua blocks laid end to end will stretch 18 ft. - the average inground pool will need 30-40 Aqua Blocks to extend around the pool completely.