We have been selling once a year flea treatments for over ten years and we have found it to work very well. This is probably because the flea granules get down to the bottom or nap of the carpeting where flea eggs and lavae seem to gravitate. The eggs and larvae die off by contact since the flea granules work as a drying agent and essentially dehydrates them before they can grow up to biting adults. By keeping the flea cycle in check, fleas are never able to get established in the carpeting which really makes flea control easy. As our on line Flea Control article explains, breaking the flea cycle is paramount when treating and it just seems like the once a year treatment does this the best.

Based on the limited information provided above, it sounds like you have a bad problem which will require a lot of flea treatment to be done to break the current flea cycle. For situations like this, we always suggest you use the Permethrin and Growth Regulator. With the Permethrin, you'll be able to apply a fresh amount of adulticide out over and over which in turn will provide adequate control of the adults and make the situation more manageable. Be sure to apply enough. Most homes will need 2-3 gallons applied if they have a lot of carpet; 1 gallon per 500-1000 sq/ft should do the job. Use the growth regulator with the first tank mix and then again 2 months later but in between, spray with the Permethrin as much as is needed to make the home tolerable to all who live there. It would also be wise to set up some flea traps as they will help reduce the local population too.

Once the problem is under control which will only happen following some heavy flea carpet treatments are done, you can then change over to the once a year flea carpet granules and rely on them to provide a good long lasting flea treatment. The problem is they don't work quickly and based on your situation, I don't think you'll be happy if you use them now. And don't forget the pets. If you keep them flea free by paying them some attention daily, you will be able to get this problem under control eventually. Good luck!