How to Make an Ice Rink on Your Pond
Part 1: Understanding How Ice Forms
One of the joys of having a pond on your property is being able to create a winter-sports wonderland. Whether you’re an ice skater or a hockey player, curling competitor or broomball aficionado, it’s sure nice to simply walk out to your ice rink, slip on your skates and play.
But before you groom your pond for ice sports, it’s important to understand how to safely create a sturdy ice sheet and what red flags to look for while the ice is forming. In this first part of our three-part series on how to make a rink on your pond, we begin with the basics.
From a Liquid to a Solid
Ever wonder exactly how ice forms? Here’s a quick lesson for you.
When the air temperature cools in the late fall and early winter, the water on the surface of your lake or pond loses its heat and becomes heavier. This cold, heavy water sinks to the bottom while the warmer water from the bottom rises to the top and cools. The cycling process continues until the overall water temperature reaches 39º Fahrenheit (or about 4º Celsius).
Before long, the water on top cools enough to freeze. As it does so, the liquid molecules transform into solid ice crystals—and those things expand and space themselves out when they form, which is why ice floats and why it takes up more room than liquid. When given enough time to form, the ice layer created by this crystallized frozen water thickens to the point where it is strong enough to support animals, humans and even vehicles.
Creating Good Ice
Since your goal is to create an ice rink, you’ll need to grow a sheet of ice that’s thick, solid, strong and dense. Water movement affects the integrity of the forming ice – in fact, just a little bit of movement on the water surface can create uneven, porous ice that’s not suitable for walking or skating. So it’s important to turn off and remove your water-moving Aeration System from the lake before the ice starts to build on your lake’s surface.
The winterizing process starts with unplugging your aeration system and shutting it down completely. Leave the airline and diffuser plates in the pond, but cover the airline ends to prevent debris from entering. Finally, store the compressor and cabinet indoors to keep them dry and rust-free.
The only movement your lake water should experience now will be from wind and waves – both of which are in Mother Nature’s control.
Beware of Red Flags
As the ice is forming, keep an eye on it. Do you see any weak or soft spots? Are there any areas with running or pooling water? These could be signs telling you to abandon your ice rink plans. Here are some more red flags to watch for:
- Flowing water near or at the edges of the ice can cause soft spots that appear gray, dark or porous.
- Flowing springs under the ice in spring-fed ponds and lakes can cause areas to not freeze.
- Water flows in and/or out of the iced-over water body. Stream inlets and outlets can erode ice, making it highly variable in thickness.
- Areas with cracks, breaks or holes are obvious danger zones.
- Ice that appears to have thawed and refrozen. These fluctuations can cause weak spots in the ice.
- Abnormal surfaces that you have not seen before, like pressure ridges caused by currents or winds.
Ice is generally strongest where it is hard and blue or clear. If you’re unsure of whether your ice is forming well, check with your local government officials (like your department of natural resources) about safety suggestions.
Next week, we’ll discuss how to make sure your newly formed ice is thick and safe enough for winter sports, and how to create a pristine winter wonderland with ice primed for fun.
Filed under: Benefits of Owning, Pond & Lake, Winterizing | Tagged: ice skating, life ring, lifering, make an ice rink, make ice, pond ice, pond safety, skate on pond, thin ice, winter | Leave a comment »