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To: Jeffrey L. Henken who wrote (32)9/14/1998 5:35:00 AM
From: ColleenB  Read Replies (2) | Respond to of 718
 
A lot of advancements have also be made in the area of the tanks as well. The earliest tanks were made from metal. This material was very good in that the tanks themselves weren't fragile. The downside was that the tanks would eventually corrode and then would leak. In many places like Florida, the tanks would corrode at a faster rate because of the low water table, contact of salt water to the metal tank. Today, these tanks are primarily constructed out of fiberglass. A material which does not lend itself to corrosion, however, they are not as durable as the metal tanks. Great care must be exercised when installing these fiberglass tanks as they have been known to "crack" before they are even installed. This is true even though they are generally double walled...another safety feature to help prevent leakage. They are essentially a tank within a tank.