Installing a Dust Collection System
Control the flow
For maximum efficiency in a branched system, shut off the flow from all ports except the one in use. To do that, install blast gates.
You can buy metal or plastic blast gages for various pipe sizes from a number of woodworking-equipment dealers. Or, refer to the drawing below to build a wooden blast gate.
The connectors shown are made from a PVC pipe coupling cut in half and epoxy-glued into place. You can alter the dimensions and couplings shown to fit different sizes or types of pipe.
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