I'm glad you found the information on my website informative. As for the sinus irrigation system, the sinupulse elite is a great device, but in reality any sinus irrigation system should be fine. Choose one that is best suited to your budget.
Remember that it's importante to use it in conjunction with an iodine-free nasal solution. The key to success when treating a disease such as chronic bad breath is to be consistent. If you choose any over the counter nasal powder, you'll end up irritating nasal tissue and will be forced to stop the treatment to allow it to heal.
The best grape seed extract out there is the NutriBiotic Maximum strength Grapefruit Seed Extract. You can find it on my 'Bad Breath Store' page or if you prefer, simply go to this website: http://www.pureliquidgold.com
You should see noticeable results within the first couple of days, and see a complete cure within 2 weeks if you follow the treatment program to the letter everyday. Always remember that the treatments are for type 1&2 halitosis. That means that it will treat and cure a halitosis condition that originates from the mouth (type 1: bacterial imbalance, tongue problems, cavities, gum disease) or from around the mouth (type 2: post nasal drip, tonsil stones). They represent the source for the majority of bad breath cases.
If after the 2 weeks period you have found no relief, you may consider that the underlying source of your bad breath lies elsewhere (type 3&4 halitosis). See the home page for more details.
I hope I have been of additional help and if you need any other information, please don't hesitate.