Q: Will I need to top off my pond this winter? If so, how do I stop my hose from freezing?
Kirsten – Kalispell, MT
A: Though water fluctuations seem more pronounced in the summertime, winter water loss in your pond will happen. When it does, you’ll need to top it off – but access to liquid water can be a challenge in northern climates where landscapes freeze over.
Reasons for Winter Water Loss
Before we get into how to turn up the heat in your water garden, let’s take a look at why water loss happens during the cold season. It can be caused by the following:
- Low humidity: When the air contains little moisture, evaporation rates increase as the dry air will absorb the water from your pond.
- Windy conditions: Wind can also escalate evaporation in your pond. A 5-mile-per-hour wind at your pond’s surface, for instance, results in roughly three times the rate of evaporation on a still day.
- Ice expansion, formation: Because frozen water takes up more space than liquid water, it will appear that the volume dissipates in your pond as ice forms and expands.
A small amount of water level fluctuation is OK – but if your pond is very shallow (18 to 24 inches or less) and stocked with fish, keep a very close eye on your water level. A few inches of water loss could leave your fish in ice!
Topping It Off
If your pond’s water level drops more than an inch or two, you’ll need to top it off. But how do you do that if the pond is covered in a sheet of ice, or if the water in your hose freezes solid as soon as you turn on the spigot?
First, you’ll have to break through the ice. To crack through it, remember to never use a drill, hammer or other blunt object, as the subsurface vibrations could harm your fish. Instead, fill a bucket with hot water and pour it on one area of the pond to melt open a hole in the ice, preferably near the edge.
Next, use the heated K&H Thermo-Hose PVC to fill up your pond through the hole. The thermostatically controlled hose prevents ice from forming in your faucet or hose. The unit’s built-in heating elements turn on automatically when temperatures dip below freezing so you’ll have liquid water coming out of your hose.
You can use the Thermo-Hose two ways: either keep it plugged into a power source all winter, or use it as-needed by plugging it in 30 minutes before use. Either way, hook it up to the spigot or water source only when in use and unhook it when you’re done.
Pond Talk: How much water loss do you experience in your pond over the winter?
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