That's because the foam inside the cover sucks up water from both
outside the spa during rain and snow and also from condensation from
inside the spa. A quick tip to help make the cover a little lighter is
to take the cover off the spa on a sunny day. Stand it up like a tent
and open up any zippers the cover may have. this will help dry out your
spa cover just a little. Keep doing this on sunny days to ensure
And if you just bought a cover this will happen so in order to prevent
it buy a cheap plastic tarp to throw over the cover to keep it
protected from the elements. It will still collect condensation from
inside the spa but it wont be as bad.
Just a quick tip!
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===========Last cover I had lasted 7 years BEFORE the wife complained it was
getting a "tad" too heavy for her to remove my itself... and honestly
it did weight a heck of a lot more then the new one I just installed
BUT these things are NOT that expensive..I would rather buy a new one
every 6-7 years then remove it every sunny day...
The vinyl cover on the old one looked just fine BTW after the 7
years.. but boy the sytrofoam sure was waterlogged (saturated)...
That's been my experience too. Current one is about 3-4 years old and
is now a little heavier than new, but still OK. I seriously doubt
that trying to dry it out on a sunny day is going to help much, as it's
the styrofoam that gets water logged and the water is trapped inside.
Even the poster says it only dries it out just a little, so what't the
This is just a tip to help keep the cover lighter while it's aging.
And it doesnt have to dry on every sunny day just a few or after it
rains. The best tip is to keep a small tarp over it when its not in use
for a long period. This will help keep the Styrofoam from getting
soaked from the outside. This is a tip to make your cover last longer.
The reason I'm laughing is that there is no way in hell you can dry
out those blocks of foam once they are saturated. Maybe if you took
the blocks out of the covers completely and had a giant oven where you
could heat them for a few weeks...
Most cover suppliers offer an option to "double wrap" the blocks. The
polyethelene wrap protecting the foam from moisture is what fails.
Once that poly rots away, the blocks quickly soak up water. The double
wrap of poly effectively doubles the life of the cover, and is usually
a very inexpensive option.
Most people have a cover to keep out debris and insulate the tub to
reduce power consumption. Taking the cover off to dry it would be
counter-productive even if it *was* effective. Just plain stupid
advice from "your local pool spammer".
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