Maya Ellison
Tapping a plastic barrel is a great way to repurpose it for rainwater harvesting or homebrewing. The process involves adding a tap or hose bib to the barrel, allowing for easy access to the liquid inside. The specific steps to tap a plastic barrel may vary depending on the type of barrel and tap being used, but some common methods include drilling a hole and screwing in the tap, using a commercial plumbing device such as a bulkhead fitting, or attaching a tap adaptor. It is important to consider the placement of the tap, the type of seal or sealant used, and the cleaning and sanitizing process to prevent bacterial growth, especially for fermentation barrels.
Characteristics and Values Table for Tapping a Plastic Barrel
| Characteristics | Values |
|---|---|
| Barrel type | 40-55 gallon, thick (~1/4") blue plastic, with a sealed top and a 4" diameter hole |
| Tap type | Food grade, 5-gallon bucket with a cheap plastic spigot |
| Tools | Drill, craft knife, step drill, step bit, pipe tap, spigot with 3/4" NPT male thread, teflon tape, silicone, thread sealant, PVC glue, PVC cement |
| Techniques | Drilling a hole and running the tap, using heat, using a bulkhead fitting, using a flexible sealant, using adjustable patches and plugs, using a twist-plug |
| Considerations | Air pressure equalization, bacterial infection, cleaning and sanitizing, leaks |
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What You'll Learn
Drilling a hole for a tap
Plan the Location of the Hole:
Before drilling, carefully decide where you want the tap to be located on the plastic barrel. Consider the function of the tap and the overall balance of the barrel. For example, if you intend to use the barrel for water storage and want to draw water from the bottom, you might choose to drill the hole near the bottom of the barrel.
Choose the Right Tools:
Select the appropriate drill bit size for the job. The size of the drill bit will depend on the size of the tap you plan to use. It is crucial to match the drill bit size to the tap size to ensure a tight and secure fit.
Drill the Hole:
Secure the barrel in a stable position to prevent any unwanted movement during the drilling process. Use a power drill or a hand drill with a steady grip to create the hole. Take your time and apply gentle but consistent pressure to the drill. Ensure the drill bit is straight and does not wobble to achieve a clean and precise hole.
Prepare the Hole:
Once the hole is drilled, you may need to smooth out any rough edges or burrs. Use sandpaper or a file to carefully refine the edges of the hole. This step helps prevent leaks and ensures a smoother connection between the tap and the barrel.
Seal the Tap:
When installing the tap, consider using a sealant or thread sealant to create a watertight seal. Some options include PVC glue or cement, silicone, or thread sealant specifically designed for plumbing applications. This step will help prevent leaks and ensure a secure connection.
Test and Adjust:
After installing the tap, test it to ensure it functions properly and does not leak. If necessary, make adjustments by tightening the tap further or applying additional sealant. Remember to follow any specific instructions provided by the manufacturer of your chosen tap.
Remember to take appropriate safety precautions when working with power tools and always wear protective gear, including eye protection and gloves.
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Using a sealant to prevent leaks
When tapping a plastic barrel, you may want to use a sealant to prevent leaks.
Firstly, you should consider the type of sealant you want to use. A common option is to use a flexible sealant such as silicone. You can apply a thick layer of silicone to the barrel and then bolt a faucet into it. However, you should not tighten it all the way down. Alternatively, you can use Teflon tape to wrap the threads of the faucet before threading it into the hole. Once you are close to the end, you can shoot some silicone between the barrel and the faucet's flange.
If you are using a metal hose, you can heat it with a torch and thread it while it is hot. This will slightly melt the threads, helping to create a seal.
There are also commercial plumbing devices available for adding spigots to plastic drums, such as bulkhead fittings. These consist of a large washer and a flat nut that screw onto a threaded pipe from the inside of the drum.
If you are looking for a quick solution, you can try using a rubberized twist plug. These plugs are tapered and can be inserted into holes ranging from 1" to 1-1/2" in size.
Finally, if you are using PVC, you can do a test by applying PVC glue to see if it will bond. If it does, you can drill your hole and set the fitting in with PVC cement.
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Using a commercial plumbing device
Tapping a plastic barrel typically involves adding a spigot or tap to the barrel to access the water inside. Here is a step-by-step guide on how to do this using a commercial plumbing device:
Step 1: Gather Materials and Prepare the Barrel
First, you will need to gather the necessary materials, which include a spigot or tap, a large washer, and a suitable sealant. The sealant can be a commercial plumbing product such as plumber's putty, silicone roofing caulk, or silicone sealant. Clean the inside of the barrel, ensuring it is free of any debris. If you need to cut a hole in the top of the barrel for rainwater to enter, use a jigsaw and cover the hole with a screen to keep out bugs and debris.
Step 2: Drill a Hole for the Spigot
Drill a hole near the base of the barrel for the spigot. The hole should be slightly smaller than the spigot to ensure a tight fit. This step requires careful measurement and drilling to avoid errors.
Step 3: Apply Sealant and Insert the Spigot
Apply a generous amount of the chosen sealant around the washer and the barrel. Then, screw the spigot into the drilled hole. Use muscle power to screw the spigot tightly into the barrel. The sealant will create a watertight seal, preventing leaks.
Step 4: Smooth Out Excess Sealant
After screwing in the spigot, you may notice excess sealant squeezing out from the joint. Smooth out this excess sealant with your fingers, creating a neat and tidy finish.
Additional Tips:
- It is recommended to place the spigot slightly above the bottom of the barrel to prevent clogging from any debris.
- Consider the placement of the spigot in relation to the gutter drain to ensure easy access and functionality.
- If you are using a metal hose bib, heat it with a torch before threading it into the barrel. This will slightly melt the threads, creating a better seal.
By following these steps and using suitable commercial plumbing products, you can successfully tap a plastic barrel and create a functional rainwater collection system.
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Sanding the area to prevent bacterial infection
Tapping a plastic barrel is a straightforward process, but it is important to take precautions to prevent bacterial infection. After cutting a hole in the barrel with a craft knife or drill, it is essential to sand the area to eliminate any deep cuts that could harbour bacteria and be difficult to clean.
To effectively sand the area around the tap, start by removing any rings or obstructions that could hinder your access to the surface. Sanding with regular 60-grit sandpaper will help you achieve a smooth and even finish. However, for a more efficient and longer-lasting option, consider using sandpaper with zirconia abrasive. This material is made of fine, sharp crystals that can effectively sand wood and grind metal. Start with 60-grit zirconia abrasive sandpaper and then progress to 80 and 120 grit for a finer finish.
When sanding, it is important to wear a dust mask or respirator to protect yourself from inhaling dust particles. Use an orbital sander for best results, as it is more suitable for curved surfaces than a belt sander. Keep the sander moving and avoid letting it sit in one place for too long to prevent creating uneven surfaces or grooves.
After sanding, thoroughly clean the area to remove any remaining dust or debris. This step is crucial to ensuring that the tap area is free from potential sources of bacterial contamination. Once the sanding and cleaning process is complete, you can install the tap, following the manufacturer's instructions or seeking guidance from online resources.
By taking the time to properly sand and clean the area around the tap, you can help prevent bacterial infection and maintain the hygiene of your plastic barrel.
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Using a barrel tipper
First, decide where you want the tap to be located on the barrel. Mark the spot with a marker or pencil. It is important to ensure that the spot you choose is accessible and easy to reach.
Next, you will need to gather the right tools and materials. You will need a drill, a drill bit that is slightly larger than the diameter of your tap, and a tap with a threaded spigot. You may also want to use a craft knife to carefully cut out the hole and sandpaper to smooth the area after drilling. This will help remove any deep cuts that may be difficult to clean.
Now, you are ready to start drilling. Place the drill bit into the drill and slowly begin to drill through the marked spot. Take your time and let the drill do the work to avoid cracking the plastic. Once you have drilled the hole, insert the spigot into the hole and thread it by hand to ensure a tight fit.
If you are using a metal tap, you can heat it with a torch before threading it into the hole. This will slightly melt the threads and create a stronger seal. For a plastic tap, you may need to use a thread sealant or Teflon tape to ensure a leak-proof seal.
Finally, attach your tap to the spigot and test it out! Be sure to regularly clean and sanitise your tap and spigot to prevent bacterial growth.
With these simple steps, you can easily install a tap on your plastic barrel using a barrel tipper method.
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Frequently asked questions
You can drill a hole and run a tap through it. If you want a clean thread, you can use heat or a thread sealant.
You can use a bulkhead fitting, which consists of a big washer and a flat nut that screw onto a threaded pipe from the inside of the drum.
You can use a flexible sealant like silicone. Apply a thick layer and bolt it into the barrel without tightening it all the way down.
Yes, you can. Make sure to take precaution against bacterial infection in the area. Sand the area after cutting to remove any deep cuts and clean the spigot before and after use.
