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Step 6Attach vacuum hose
Now we attach the vacuum hose by working it over the hose barb, and the motor/pump assembly back where it belongs, more or less.
You don't generally need a hose clamp to hold it tightly to the barb, if your hose is fairly rubbery. (That's one reason I chose the flexible PVC.) Vacuum will tend to suck the hose inward onto the hose barb, making a seal, rather than stretching it outward and making a leak.
Once the hose is in place, you need to figure out how to route it out of the case.
For this pump, there isn't much room to route the hose through the case without kinking the hose or stressing the hose barb, so I chose to just run the vacuum line straight out the top.
You don't generally need a hose clamp to hold it tightly to the barb, if your hose is fairly rubbery. (That's one reason I chose the flexible PVC.) Vacuum will tend to suck the hose inward onto the hose barb, making a seal, rather than stretching it outward and making a leak.
Once the hose is in place, you need to figure out how to route it out of the case.
For this pump, there isn't much room to route the hose through the case without kinking the hose or stressing the hose barb, so I chose to just run the vacuum line straight out the top.
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