Can a Swimming Pool Freeze

Yes, they can freeze solid. If temperatures reach below zero, swimming pools that are not circulating can freeze solid within a few days. If those low temperatures continue for several days, the ice sheet can increase in thickness by up to ¼” per day.

How cold does it have to be for a pool to freeze?

What temperature does a pool freeze? A chlorinated swimming pool freezes at around 32 degrees Fahrenheit, the same temperature as non-chlorinated water.

What to do if pool starts to freeze?

If the pool is already frozen more than 1/2″ thick, wait for a bit of a thaw before lowering, or break up the ice first before and while lowering the water level. For safety pool covers, be careful not to lower the pool more than 12″ below the tile line.