In 1963, the PLA purchased a pump for $18,000 ($144,000 in adjusted inflationary dollars today) to pump water into the lake as the lake was too shallow. It ran for one and a half years continuously raising the lake by over two feet. It was capable of putting 1 inch of water per month in Prior Lake which equals approximately 40 million gallons. At the time, the water was very valuable until the 1983 flood and several floods after that. At the time, this was the most costly project paid for by the Association.