What is a Gooseneck Filler Tube?

Author: LEVEL5

Publish Date: June 12, 2023

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A “gooseneck” filler tube is a specialized, s-curved tube that lets you transfer mud from a drywall compound pump to an automatic drywall taper.  

The unique design of the gooseneck filler tube enables you to rest your taper on the tube upside down while you fill it with joint compound. The gooseneck fits snugly into the compound pump on one end.  The other end fits into the nozzle of an automatic taper. 

Design Features of the LEVEL5 Gooseneck Filler Tube

Stainless Steel Construction

The LEVEL5 gooseneck is a professional-grade filler tube crafted using premium stainless steel.  It is tough, corrosion-resistant, and long-lasting, even under the most demanding commercial conditions. A high quality o-ring provides a snug fit against the filler valve on the top of your automatic taper, minimizing any leakage during the filling process.

Precision-Machined Mounting Flange

The LEVEL5 gooseneck filler tube includes a machined mounting flange for a perfect, leak-free fit to the compound pump when used in conjunction with a LEVEL5 filler flange gasket. 

Built-in Taper Rest

Half way up the gooseneck is a rounded bracket that holds your taper tube and allows the taper to rest upside down and hands-free while its filler valve is inserted.  The bracket features durable rubber tubing to ensure it doesn’t damage the anodized finish on your automatic taper.

Built-In Stability Foot

The gooseneck tube incorporates a foot at the bottom to add stability when filling minimizing the chances of spills or mishaps.

How to Fill an Automatic Drywall Taper with a Gooseneck Filler Tube

Filling an automatic drywall taper with a gooseneck filler tube can be an efficient and straightforward process if you follow the steps outlined below. 

Step 1: Mount the Gooseneck on the Compound Pump

At the top of your joint compound pump there is an opening for attaching either a flat box filler valve or a gooseneck filler tube.  Both are attached using two bolts and are easy to swap back and forth during different stages of the finishing process. 

Step 2: Disengage the Drive Mechanism

This is very important and a classic rookie mistake which ensures there is joint compound everywhere BUT in the automatic taper! The first step in filling your taper is to disengage the taper’s driving mechanism. To do this, push down on the disk located on the head assembly. This action will lower the lever and release the drive mechanism, allowing for easy filling.

Step 3: Position the Taper and Gooseneck

Next, turn the automatic taper upside down and align the taper nozzle over the gooseneck filler tube. Push down firmly to create a secure connection. 

Step 4: Stabilize the Pump Before Filling

Keep the compound pump stable during the filling process, by placing a hand at the top of the automatic taper's tube and a foot against the pump.

Step 5: Pump the Joint Compound*

With the automatic taper and gooseneck filler tube properly connected and stabilized, start pumping the joint compound into the taper *(see note below). The tube is normally filled in nine pumps on average. As the plunger approaches the top of the tube, you will feel resistance; this indicates that the tube is almost full.

* Starting with a fresh bucket of mud?  Before you begin filling the taper, prime the compound pump by pumping the handle a few times until you see the compound appear out of the end of the gooseneck. Priming makes sure that you don’t introduce any air or water into the taper that will then show up as gaps in the bedding mud as it is applied to the bottom of the drywall tape.

Step 6: Return the Taper to Its Upright Position

Place one hand at the top of the tub allowing your fingers to rest inside the taper tube during the filling process.  After 8 or 9 pumps you should feel the back of the plunger gasket rising to meet your hand, and that will be your clue to stop pumping.  You can now remove the taper from your gooseneck and carefully turn it upright to its normal operating position. 

Step 7: Re-engage the Drive Mechanism

Lift the clutch lever back onto the head assembly to re-engage the drive mechanism. This step will lock the mechanism back into position and your taper is ready to go!

Whether you are rounding out your tool set, or just getting started with automatic drywall tools, LEVEL5 has a wide range of products to choose from.  Backed by one of the best warranties in the industry, these tools are crafted for professional applications and designed to improve your workflow and quality of output.

A “gooseneck” filler tube is a specialized, s-curved tube that lets you transfer mud from a drywall compound pump to an automatic drywall taper.  

The unique design of the gooseneck filler tube enables you to rest your taper on the tube upside down while you fill it with joint compound. The gooseneck fits snugly into the compound pump on one end.  The other end fits into the nozzle of an automatic taper. 

Design Features of the LEVEL5 Gooseneck Filler Tube

Stainless Steel Construction

The LEVEL5 gooseneck is a professional-grade filler tube crafted using premium stainless steel.  It is tough, corrosion-resistant, and long-lasting, even under the most demanding commercial conditions. A high quality o-ring provides a snug fit against the filler valve on the top of your automatic taper, minimizing any leakage during the filling process.

Precision-Machined Mounting Flange

The LEVEL5 gooseneck filler tube includes a machined mounting flange for a perfect, leak-free fit to the compound pump when used in conjunction with a LEVEL5 filler flange gasket. 

Built-in Taper Rest

Half way up the gooseneck is a rounded bracket that holds your taper tube and allows the taper to rest upside down and hands-free while its filler valve is inserted.  The bracket features durable rubber tubing to ensure it doesn’t damage the anodized finish on your automatic taper.

Built-In Stability Foot

The gooseneck tube incorporates a foot at the bottom to add stability when filling minimizing the chances of spills or mishaps.

How to Fill an Automatic Drywall Taper with a Gooseneck Filler Tube

Filling an automatic drywall taper with a gooseneck filler tube can be an efficient and straightforward process if you follow the steps outlined below. 

Step 1: Mount the Gooseneck on the Compound Pump

At the top of your joint compound pump there is an opening for attaching either a flat box filler valve or a gooseneck filler tube.  Both are attached using two bolts and are easy to swap back and forth during different stages of the finishing process. 

Step 2: Disengage the Drive Mechanism

This is very important and a classic rookie mistake which ensures there is joint compound everywhere BUT in the automatic taper! The first step in filling your taper is to disengage the taper’s driving mechanism. To do this, push down on the disk located on the head assembly. This action will lower the lever and release the drive mechanism, allowing for easy filling.

Step 3: Position the Taper and Gooseneck

Next, turn the automatic taper upside down and align the taper nozzle over the gooseneck filler tube. Push down firmly to create a secure connection. 

Step 4: Stabilize the Pump Before Filling

Keep the compound pump stable during the filling process, by placing a hand at the top of the automatic taper's tube and a foot against the pump.

Step 5: Pump the Joint Compound*

With the automatic taper and gooseneck filler tube properly connected and stabilized, start pumping the joint compound into the taper *(see note below). The tube is normally filled in nine pumps on average. As the plunger approaches the top of the tube, you will feel resistance; this indicates that the tube is almost full.

* Starting with a fresh bucket of mud?  Before you begin filling the taper, prime the compound pump by pumping the handle a few times until you see the compound appear out of the end of the gooseneck. Priming makes sure that you don’t introduce any air or water into the taper that will then show up as gaps in the bedding mud as it is applied to the bottom of the drywall tape.

Step 6: Return the Taper to Its Upright Position

Place one hand at the top of the tub allowing your fingers to rest inside the taper tube during the filling process.  After 8 or 9 pumps you should feel the back of the plunger gasket rising to meet your hand, and that will be your clue to stop pumping.  You can now remove the taper from your gooseneck and carefully turn it upright to its normal operating position. 

Step 7: Re-engage the Drive Mechanism

Lift the clutch lever back onto the head assembly to re-engage the drive mechanism. This step will lock the mechanism back into position and your taper is ready to go!

Whether you are rounding out your tool set, or just getting started with automatic drywall tools, LEVEL5 has a wide range of products to choose from.  Backed by one of the best warranties in the industry, these tools are crafted for professional applications and designed to improve your workflow and quality of output.

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