How will ozone affect pool/spa covers and vinyl liners?
Most pool covers are resistant to ozone. Studies have found that the UV rays from the sun break down the pool cover before ozone begins to discolor the cover. Spa covers, however, tend to break down quicker than pool covers and we recommend the use of an MDV to remove any potential ozone off-gas from discoloring the spa cover. Ozone, in some cases, can affect the color of vinyl pool liners so an MDV must be installed to remove ozone bubbles from contacting the liner. A common “salt and pepper” fitting should also be used to distribute water flow away from the liner.
