You should never take everything you read from the reviews of water 4 gas for granted. You should be more careful before making your decision. Always think about every aspect of the water 4 gas before going to purchase one. The information package for the water 4 gas seems to be a little expensive when it is compared against the other informative products sold on the net, through an electronic download. Not only the information package but also you will need to buy the different parts for the water 4 gas systems, which will cost you around another $300. So, you should take into account all these things before investing money in the water 4 gas.