This pressure surge then forces a small amount of water through a one-way delivery valve and into the delivery pipe, raising it to a higher elevation. The cycle repeats, allowing the pump to lift water at a height that can sometimes exceed seven times the height of the drive water source. The efficiency of the hydraulic ram pump is mostly determined by the height difference between the water source and the point of discharge.

Understanding Oil Seals

5. Reassemble and Test After replacement, carefully reassemble the hydraulic cylinder. Once reattached to the hoist, test its operation without excessive loads to ensure it functions properly.

In a typical tape splice, you’ll tug and pull out the tape, stretching it to just before the breaking point. The tape’s width narrows to about 1/3rd of its original size. The tape’s length increases; your hand travels very quickly up to 20” away from where you started. Quite often you’ll be wrapping in a tight location making this even more difficult. Proper taping techniques are critical to realizing the many performance benefits of rubber tape.

Bike Connect is still in development, and its creators are working on adding features that will allow cyclists to use it without looking at their phones. (And, we have to ask—what’s stopping someone in a car from using this?) But it’s a great example of what some crafty technology geeks can do with a few wires, capacitors and a durable outdoor electronics enclosure.