Dirt Devils Etc.
kirbyvertibles: Funny thing--I have the long-lost maroon Pro Series Can-Vac for that maroon Power Pak you have! I've been keeping my eyes peeled for a Power Pak for this thing.
On the topic of hand vacs...I've had something like 4 103s, 3 Dirt Devil Pluses, 1 Royal prince model 501, and now my favorite: the Dirt Devil Ultra, which I found for $3 in excellent condition. It's apart right now for restoration, but once I finish it, I will post pictures.
I was shocked to find a brand new toy Dirt Devil "Junior" hand vac for less than a buck the other day, too! This thing will actually suck up little pieces of dust and cat hair!
fan-of-fans: Bagged Dirt Devil hand vacs can use tools with either the front port or a pan converter, which came with a number of the "Plus models." Although the pan converter is more convenient since it does not require removal of the belt, its performance is worse. I would recommend using the front port.
In my experience, your best bet for getting the highest level of cleaning performance is using a 3-amp Plus model with the hose through the front port. However, maybe the Ultra with its built-in hose and 4 amp motor will do better. I just don't know, though, because I have yet to try the Ultra out. Either way, don't expect an intense amount of suction.
The best solution I have found for vacuuming out my car is a digital motor Dyson DC34, found for $100 at Walmart, paired with a Dyson hand vac extension hose. It has just enough suction to lift the sand off my plastic floor liners and just enough battery life to clean every nook and cranny of my car in a single go.
Good luck!
broomvac
