Date: 12/31/1969 Views: 7173
Date: 12/31/1969 Views: 3943
Date: 06/24/2007 Views: 5625
Date: 08/23/2023 Views: 789705
It was determined that a 1/4 in (6.4 mm) thick piece of rigid urethane foam topped with cork was needed to support the front "ledge" of the tank so it wouldn't sag.