Hi Bricksters

Just took a look at my water pump and the top seal is leaking on my '88 245. I have decided to replace the water pump on my girlfriend's '90 245 but my brick i changed the water pump 1.5 years ago so i want to try the Bar Leak or Aluma-Seal. Both of the products come in a container but there was also some Bar Leak that comes in a roll like pkg. The directions said to add to the radiator. Our bricks have the resivoir(sp) that is connected to the rad. I did get a few hits stating that people have used these products and said that it works. Can anyone give me some experiences they have had with these products. And also how did you add it to your vehicle? Thank you