Most Hot Tub dealers offer Hot Tub Covers with a taper. They uphold these hot tub covers as though the capacity to shed rain and moisture will keep it from getting saturated and heavy.

If this worked would there ever be a new heavy hot tub cover? True, it does facilitate the spa cover shed rain. True, rain running off the spa is a good thing. Unfortunately this has not anything to do with what causes Hot Tub Covers to get intense.

Here is an easy test you can do yourself to test what I just said. Go and buy a new stiff foam filled hot tub cover with as large a taper as you can discover. Before you place it on your Hot Tub, weigh it. A hanging weight will most likely be most precise and easy to read. Trace the weight and date it. Put the latest cover on your hot tub only to be completely sure that no rain or outside humidity gets into your new hot tub cover put a wrap over the whole spa, cover and all.

Weigh the cover once a week and record it with the date. When the hot tub cover begins to get heavy you will know how long it took and that it was not due to outside moisture. If you are keeping all the rain water totally away from the spa, why is the hot tub cover getting heavy?

The detail is outside moisture is never what the reasons the foam in Hot Tub Covers to get heavy. Rigid foam filled hot tub covers get heavy because they are in use over steam from your spa water. Here is another way you can prove this to yourself. Purchase two new spa covers. Weigh them both and record and date it. Put one cover on your hot tub and use it as common. Store the other one in your garage or some other place out of the moisture. If you weigh them each every week, before long you will find the one in use on the spa will begin to get heavy. The one in storage in a dry place will not get heavy.

Now we come to the rationale. What gets into the foam is the steam from bottom the spa cover. The steam units are much smaller than water molecules like rain. Steam can get through the tiniest hole. Since there is no lack of steam above spa water, it will always sooner or later work its way into the spaces in the foam. So in fact, the only way to keep away from having any rigid foam hot tub cover inundate is to never put it on your spa or never put water in your spa.

So what is so bad about a hot tub cover getting heavy? Aside from making the hot tub more difficult to use, is saturation bad? The insulation in a rigid foam cover comes from the air spaces in the foam. If those air spaces are filled with water then that insulation value is gone. Worse yet, when the weather gets cold the moisture in that foam freezes. This is what fools a lot of people in to thinking that their foam hot tub cover is doing a great job of insulating. When snow falls on a frozen block of ice, it sits there and piles up.

For now the hot tub is working harder to continue the water warm. As steam hits the underneath of the frozen foam hot tub cover, it cools and condenses, falling back into the spa. Snow will sit just all right on a frozen lake but that does not mean that the ice is insulating anything.

So what is the solution? Well, you could buy two or three hot tub covers and rotate them as you notice them getting heavy. Always have one or two drying out in your garage. Once the saturated spa cover is off the spa, it will begin to dry out. You can rotate it back on to the hot tub when the next one gets heavy. Since all vinyl is rated by hours outdoors, you will still need to be buying new covers to replace the ones that fall apart.

The better choice would be to find a hot tub cover that does not use foam. If you shop online there are alternative spa covers that your local spa dealer does not have to offer. Be sure to visit SpaCap.com before you replace another Hot Tub Cover with something you know is going to end up just as heavy as the one you are replacing. Or Call 800-850-2468.