Date: 12/31/1969 Views: 4940
Date: 06/12/2010 Views: 4735
Date: 12/28/2011 Views: 6156
Date: 08/23/2023 Views: 693504
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.