Working with Central Vacuum PVC Pipe


Similar to PVC water pipe, only thinner, PVC central vacuum piping is as easy to cut and to connect.

A central vacuum system utilizes a system of plastic pipe to carry dust and debris from the vacuum cleaner through walls and beneath floors to the power unit and canister that collects it.

The PVC pipe is very similar to PVC water pipe—it just has thinner walls, so it’s lighter in weight and easier to cut and handle. Like PVC water pipe, PVC vacuum system pipes and fittings are assembled with PVC cement.

Measuring, cutting, and assembling these pipes is a relatively easy job–the hardest part is usually drilling and cutting holes through wall studs and other framing members (see How to Install a Central Vacuum System).

Step-by-Step Techniques

1Cut PVC pipe to length with a hacksaw or a reciprocating saw equipped with a fine-toothed blade.

 

cutting central vac PVC pipe©Don Vandervort, HomeTips

Cut PVC pipe to length with a hacksaw or a reciprocating saw equipped with a fine-toothed blade.

2Smooth the rough-cut pipe ends, inside and out, with fine-grit sandpaper.

©Don Vandervort, HomeTips

Smooth the roughly-cut edges with fine sandpaper.

 

 

 

 

 

©Don Vandervort, HomeTips

Apply PVC cement to the end of the pipe.

 

 

 

3Apply a 1-inch-wide band of PVC cement around the end of the pipe only—not the fitting.

 

©Don Vandervort, HomeTips

Push the fitting onto the pipe and position it.

 

4Immediately push the fitting onto the pipe end, twist it slightly, and hold the joint for about 30 second.

 

 

 

 

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Join the Conversation

  • Wallflower

    My Beam CV was losing suction and, after investigating , found the pipe was loose and partially disconnected from the metal floor plate serving my second level. Was this connection supposed to be glued or is it sealed by an o-ring? By pushing it up, the suction returns but it doesn’t stay tight. It was installed two years ago by the store I purchased it from.

    • Don Vandervort, HomeTips

      Normally the pipe is secured beneath the floor and the receptacle is plugged into it. An O-ring seals the joint. Because the receptacle is screwed to the floor, the connection doesn’t typically come apart.

      • Wallflower

        Thanks, Don. The pipe isn’t secured to anything. I have it propped up with a piece of wood for the moment. I can’t find any type of o-ring unless it fell off and disappeared. I will glue it together, strap it secure and hope for the best. Thanks again!

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