Everyone likes to talk about how great CLR is. The fact is, FrogWash blows CLR away when it comes to removing rust, cleaning vinyl, and especially when it comes to both.
Here’s a video of a stain that remained after some bozo left a 45 gallon steel drum on our vinyl deck for 5 years. After trying to remove the stain using CLR, we got another one to use FrogWash on the same stain. Just look how much better of a job FrogWash did.