6" or 8" thick reinforced Concrete Swimming Pool Walls for the same price or less than most steel or polymer pool wall systems.  Spider Tie "Wet" has been specially formulated for the harsh chemical environments associated with swimming pools and water features. Spider Tie "Wet"  is installed  and preforms the same way as Spider Tie "Dry". Spider Tie "Wet" was designed for swimming pools but it can be used in all the same applications as Spider Tie "Dry". As mentioned, due to the harsher conditions that exist with swimming pools and water features we only recommend using the Spider Tie "Wet" for these particular applications.