Brenda, This can depend on the building materials and the darker the color of the materials. In my experience this seems to be more common with darker colors as they tend to absorb more heat than the ... read more
If the tue does not leak when it is sitting full of water, try looking at the seal around the fill spouts and on/off handles. We see a lot of leaks in those areas in tubes that are 15 or more years o ... read more