You can get plenty of suction from a central vacuum but the power of suction is one of those misleading factors. Just how much does one need? You se them at trade shows picking up bowling balls but really, I hardly ever need to do that. I actually don't even want that sort of power for fear of losing a child or the cat.
One wants to be able to pick up sand, maybe very light gravel and of course dust and pet hair but it doesn't take a load of suction for that. Even industrial dust collection for shop tools wants more volume of air than force. This is one main problem with using a shop vacuum for dust collection in a shop, it will suck large bolts up from the floor but doesn't remove enough air to clear the chips from a planer. They are very light. It is true that to some extent high power will overcome the smaller diameter tubes used in most vacuums. And yes, they do come with power heads including rotating brushes. ----- Original Message ----- From: Curtis Delzer To: [email protected] Sent: Tuesday, April 01, 2008 11:43 AM Subject: Re: [BlindHandyMan] Re: central vacuum system I have a question about such a system. Are there such systems which have rotary brushes such as the power nozzles usually sold with Curby vacuums? I wonder how much "suction" they have compared to a good canister like a Curby or Rainbow which suction is superior to any upright I've seen. Thanks! Curtis Delzer ----- Original Message ----- From: carl To: [email protected] Sent: Monday, March 31, 2008 2:45 PM Subject: Re: [BlindHandyMan] Re: central vacuum system so apart from quiarter running and keeping dust alagys at bay what other advantages are thair in sutch a system? ----- Original Message ----- From: Don To: [email protected] Sent: Monday, March 31, 2008 9:01 PM Subject: Re: [BlindHandyMan] Re: central vacuum system Yeah, that is a problem, you would not think about happening. ----- Original Message ----- From: Victor Gouveia To: [email protected] Sent: Monday, March 31, 2008 8:22 AM Subject: Re: [BlindHandyMan] Re: central vacuum system Hi All, I work in a home with such a system, and I have found one important, but otherwise trivial problem that one might not look for. The outlets where you connect the vacuum hose. In the one house I work in, if you place repeated pressure on the outlet, meaning if you pull too much on the hose, since the hose has little give in terms of stretching capability, it can, and in my case, did pull out the outlet to the point where the wires were hanging out of the wall, and the outlet housing was stuck to the hose end. You might be wondering how and why the outlet came along with the hose end when it was pulled, and/or why the hose simply didn't come off the wall outlet when the hose was pulled. Well, the simple explanation is that the outlet looks like a pet door on a regular home door. It consists of a flap that covers the outlet when not in use. This flap has a lip that slides over the end of the hose when it is connected to the outlet, not allowing it to come off so easily. I guess this is done as a safety precaution, and as a feature, as those hoses would come off quite easily given the pressure with which you apply it when vacuuming. The owner has had to replace several outlets because of this, and, as you can imagine, it's not easy to do with wires connecting the outlet to the hose. Just something to think about in terms of future maintenance on such units. Victor Gouveia [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------------------------------------------------ No virus found in this incoming message. Checked by AVG. Version: 7.5.519 / Virus Database: 269.22.3/1354 - Release Date: 4/1/2008 5:38 AM [Non-text portions of this message have been removed]
