I'd like to know how you make out, too, because we also have a small leak. I've been reading up on this type of product. Apparently is is heaveir than water and will sink to the bottom - although the pool must be stirred every so many hours or run through an empty filter ( No DE or cartridge). It eventually settles and hardens. I asked the saleman at Namco and he said they have it but he wouldn't guarantee it to work. For the price ( I've seen another brand on the internet for about $14) I would think it would be worth a try before spending hundreds on a new liner.