Our Pro-rated warranty is a partial warranty that is used for non-repairable products like tires or batteries or in this case Pool Borders. Under Pro-rated warranty, if a Pool Border fails before the end of the warranty cycle, we replace it at a cost that depends on the age of the item at the time of complaint. In this type of warranty only a part of the initial cost is covered. However, the replaced product is then covered by an equal new warranty. If your Pool Border fails in the pro-rated warranty cycle then depending on the value of the Pool Borders, you will get a discount on the current price of the newly replaced Pool Borders. The pro-rated warranty is counted from the date of purchase to the date of filing a claim.