I have seen people inflate beach balls under the sllide toppers to keep them from bellying and holding water. I always thought it was too much trouble, but if you sit in one place a lot, they worked.
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Smooth Sailing,
Ric and Jan Golding
Southern Illinois
2016 Jayco Seneca 37FS
2016 Chevrolet Traverse
2018 Cheverolet Silverado
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