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jkohler70 · 10-15-2018, 04:32 AM

If you have a couple of gallons of water in a tank with a capacity of 30+ gallons it isn't any concern. Freezing causes problems because water expands when it freezes. Water expands about 9% when it freezes. You'd need in excess of 25 gallons of water in a 30 gallon tank for the expansion to cause a problem.

10-15-2018, 04:32 AM	#6
jkohler70 Senior Member Join Date: Jun 2014 Location: Saint Louis Posts: 235	If you have a couple of gallons of water in a tank with a capacity of 30+ gallons it isn't any concern. Freezing causes problems because water expands when it freezes. Water expands about 9% when it freezes. You'd need in excess of 25 gallons of water in a 30 gallon tank for the expansion to cause a problem. __________________ 2012 Ford Expedition EL Limited 2014 Passport 2510RB