Even though we ended up having to replace the chemicals this was a great kit. The price makes it worth using as a base as similar kits are quite a bit more, we tried using included bottles but when checking with Leslie Pools found that they were ineffective. Easily remedied by buying replacement bottles for a mere 97 cents ec. Not sure if they all had to be replaced but we just went ahead knowing that at least 2 were unusable, still saved us a Lot of money over using comparable kits and who knows if their included chemicals would have fared any better. Would definitely buy again just for the kit.