This is a photo of our pool taken this morning. The water is hovering between 32 and 34 degrees F. The filter runs constantly, attempting to keep the water moving. This is the icy waterfall on the retaining wall. This is a first! Last night, ambient temps dropped to about 17 degrees. The kids had a snow day this week when they closed our little Montessori due to icy roads. In Pennsylvania, the roads are salted fairly efficiently. Here in North Texas, they put gravel on the bridges and it barely helps.