plastic panels or slats. These are becoming popular even though they can be as
costly as redwood or cedar. But they are able to withstand the elements with little
care.
Typically you should re-stain pine panels every year.
Newer spas with synthetic siding require little upkeep other than cleaning. I have
seen spas where the heat of the sun causes the panels to bow and lose shape. If
you see this happening, you might consider reinforcing the back of the panel with
a piece of wood or where you can and available, add a screw or two to center
areas that are bowing. You will need to locate a wood vertical post to screw the
panel against to create more support and avoid bowing.
8
