How to Fill An Automatic Taper Using A Compound Pump & Gooseneck

When it comes to finishing drywall, an automatic taper is a useful tool that saves time and effort. A compound pump and gooseneck must be used to fill the automatic taper correctly for best results.  Here is the step-by-step process on how to fill your automatic taper.

Step 1: Attach the Handle to the Compound pump

First, attach the pump handle to the compound pump. The LEVEL5 compound pump is designed with a longer handle intended to minimize bending and reduce additional stresses on the back.  The handle is affixed to the pump shaft with two quick-release pins. Make sure the pump shaft is extended to make this step easier, and then remove the back pin from the pump and align the back holes on the handle with the holes on the pump.  Secure the handle by inserting the pin back through the handle holes. Then complete the same steps by removing the front pin on the shaft, positioning the handle to align with the holes and reinserting the pin through the handle holes. The hole closest to the end of the handle affixes to the pump shaft.  

LEVEL5 Tools

Step 2: Attach the Gooseneck to the Compound pump

The next step is to attach the gooseneck to the compound pump. The gooseneck is a long, curved piece that allows you to transfer compound via the pump directly into the auto taper. To attach the gooseneck, first place the rubber seal (filler flange) gasket over the pump opening so that the gasket sits against the opening. The gasket will help prevent mud from leaking when you are filling the gooseneck.  Next, align the flange with the dispensing hole in the compound pump. Note: there are 2 notches in the flange. First, slot the straight notch behind one nut and then let the second (curved) notch slide onto the second nut. Using the included wrench, tighten the nuts until the gooseneck is securely affixed.

Step 3: Place the Compound pump in Your Choice of Mud

Now, place the compound pump into a bucket with your prepared mud or joint compound, making sure that the foot remains outside the bucket and is flat against the floor. Before filling any automatic tools, prime your pump; pump the handle a few times to allow any water or air bubbles to be released. Once the compound appears at the end of the gooseneck, you are ready to use it.

Step 4: Set up the Automatic Taper 

Before you begin, push down on the disk on the head assembly of the auto taper to lower the lever and disengage the drive mechanism. Then, flip the automatic taper upside down and position the taper nozzle over the gooseneck, pushing down firmly.

Step 5: Use 8-9 Pumps to Fill the Taper 

Place your hand at the top of the tube, and place a foot against the pump to keep it in place as you begin pumping. It takes approximately 9 pumps to fill the tube, and you will feel the plunger nearing the top of the tube as your indication to stop pumping. Once filled, turn the taper back to its upright position, and re-engage the drive mechanism to begin taping.

Step 6: Don't Overfill the Taper 

As you are dispensing compound into the auto taper, keep your hand at the top of the tube.  Stop pumping once you feel the plunger with your fingers. Avoid overfilling, as this can lead to inconsistent dispensing and possible waste.

Using a compound pump and a gooseneck to fill an automatic taper can be an easy process that requires some attention to detail. By following the steps outlined here, you can make sure that the filling is completed quickly and efficiently.