How To Fill A Punching Bag Base With Water. You can either fill up its base with water or sand. You will need a few pieces of old clothes, a sturdy rubble sack, and sawdust, depending on your heavy bag’s sizes for this method.
If you have one, go with sand instead of water,. Be sure to compress everything evenly to make. Whilst the rounded base design ensures that the bag is easy to roll away for storage.
We recommend replacing the water with sand.
Freestanding punching bags use a reservoir as a counterweight to simulate the resistance and swing of a hanging bag. To fill heavy punching bag, it is better to add a pvc pipe of a cylinder in the middle of the punching bag and wrap it with foam. You can just fill the bases of these bags with water or sand. If you are in the habit of tipping over your punching bag then i would fill it with sand only.