Date: 12/31/1969 Views: 4224
Date: 11/18/2013 Views: 4425
Date: 05/31/2004 Views: 5193
Date: 08/23/2023 Views: 819113
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.