
Installing a tap into a plastic container is a straightforward process that requires a few basic tools and some prior knowledge. This process can be applied to all polyethylene tanks, regardless of the type or the resource they store. The first step is to drill a hole in the container, which can be done with a 1/2 pipe tap. The next step is to connect the tap, which can be done by screwing a faucet into the hole. It is important to use thread tape when connecting valves or plumbing to the bulkhead fitting. Finally, the seal should be checked by performing a water test to ensure that the new bulkhead does not leak.
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What You'll Learn

Drilling a hole
Choose the Right Tools:
Select an appropriate drill bit designed for drilling through plastic. Ensure it is sharp and in good condition to create a clean hole. A drill bit that is specifically made for plastic drilling will help prevent melting or excessive friction.
Mark the Drilling Spot:
Identify the desired location for the tap and mark the spot with a marker or tape. Ensure the spot is accessible and allows for easy installation of the tap. Consider the size and placement of the tap when marking the drilling spot.
Secure the Container:
Clamp the plastic container securely to a workbench or stable surface. This will stabilise the container and prevent it from shifting during the drilling process, ensuring a straight and accurate hole.
Drill the Hole:
Start drilling at a slow speed to gain control and establish a pilot hole. Once the drill bit has penetrated the plastic, you can increase the speed gradually. Apply gentle and steady pressure to create a smooth and controlled drilling action. Use a drill bit that corresponds to the size of the tap's threading.
Deburr and Clean:
After drilling the hole, use a deburring tool or sandpaper to smooth out any rough edges or burrs around the hole. This will help prevent snags and ensure a clean finish. Remove any plastic shavings or debris from the drilling process.
Seal the Hole:
To create a tight seal, use thread tape (such as Teflon tape) and wrap it around the threads of the tap before inserting it into the hole. You can also apply a suitable sealant or adhesive, such as PVC glue or cement, to the threads to enhance the seal and prevent leaks.
Install the Tap:
Screw the tap into the drilled hole securely, following the manufacturer's instructions for the specific tap. Ensure the tap is properly aligned and tightened, but be careful not to overtighten, as it may damage the threads or the plastic container.
It is important to note that reinforcing the hole and the tap connection may be necessary, especially if the container will hold a significant amount of liquid or water pressure. This can be achieved by using bulkhead fittings or through-wall fittings designed for plastic tanks and containers. Always test the seal and connections for leaks before filling the container.
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Choosing the right tap
Material
It is recommended to opt for a stainless steel tap, as it offers better quality and durability compared to plastic taps. Stainless steel is less likely to leach chemicals into the water and will provide a longer-lasting solution.
Style
Consider the style of tap that best suits your needs. A ball valve style tap, for example, can handle the pressure of a large volume of water behind it, making it ideal for a water butt.
Size and Fit
Ensure that the tap you choose is the appropriate size and has the correct fittings for your container. Measure the thickness of the container wall and select a tap with a length that can accommodate it.
Ease of Installation
Look for a tap that comes with clear and detailed instructions for installation. This will make the process smoother and reduce the risk of errors or damage to your container.
Reinforcement
As mentioned in the previous response, reinforcing the tap from the inside of the container can significantly increase its stability and durability. Consider a tap with a wide nut that can be secured from the inside.
Water Quality Maintenance
To maintain water quality, choose a tap that creates a tight seal with the container to prevent leaks. Additionally, consider using purification methods, such as water purification tablets or bleach, to extend the shelf life of the stored water and ensure its safety.
Remember to follow the general guidelines for water storage, including using food-grade containers, regularly rotating the water, and storing in a cool, dark place away from direct sunlight and extreme temperatures.
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Reinforcing the hole
Firstly, it is essential to understand the importance of reinforcement. A hole in a plastic container will need to withstand the pressure of the water it holds. Without proper reinforcement, the hole may not be able to bear the weight and could lead to leaks or, worse, a burst container.
One method to reinforce the hole is to use PVC glue and cement. Before drilling the hole, test the glue on the barrel to ensure it bonds with the plastic. Once you're satisfied with the adhesion, drill your hole and set the fitting in place with PVC cement. This will create a strong and watertight seal around the fitting.
Another approach involves using threaded fittings and PVC pipes. Place a threaded fitting on a length of PVC pipe and insert it through the drilled hole from the inside of the container. Secure the fitting on the outside and then attach your tap or faucet. This method provides stability and a secure connection for the tap.
Additionally, consider using thread tape to reinforce the connection between the tap and the container. Wrap the threads of the tap with Teflon tape before threading it into the hole. This will help create a tighter seal and prevent leaks. You can also shoot some silicone between the container and the spigot flange for added reinforcement.
When working with fittings, it is important not to overtighten the bolts as this can strain and bulge the gasket, leading to leaks. Always perform a water test after installing the tap to ensure there are no leaks. Fill the container up to the fitting level and carefully inspect for any signs of water escaping from around the seal.
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Sealing the tap
First, it is important to select the appropriate fitting for the tap. The fitting should match the size and type of the tap and the container. In some cases, you may need to drill a hole in the container to accommodate the fitting. It is recommended to use a 22mm tank/skin fitting or a larger 28mm fitting. Alternatively, you can use plastic gate valves, which are commonly used by pond enthusiasts and typically start at 45mm.
Once you have the correct fitting, you can prepare the seal. Wrap the threads of the fitting with Teflon tape or thread sealant. This will help create a tight seal and prevent leaks. Insert the fitting into the hole and thread it securely in place. Be careful not to overtighten, as this can strain and deform the plastic, leading to potential leaks.
To further reinforce the seal, you can apply a silicone sealant between the barrel and the spigot flange. Snugly tighten the fitting, ensuring a secure connection. Additionally, consider using a companion flange or an electrical box bushing between the spigot and the barrel for added security and leak prevention.
Finally, it is crucial to test the seal before use. Fill the container with water up to the fitting level and carefully check for any leaks or water seepage around the seal. If any leaks are detected, adjust the fitting and repeat the testing process until a secure seal is achieved.
By following these steps and paying attention to the details, you can effectively seal the tap in your plastic container, ensuring a leak-proof and functional installation.
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Testing for leaks
Identifying Potential Leak Sources: Begin by thoroughly inspecting the plastic container for any signs of damage or potential leak sources. Look for visible cracks, holes, or weak spots in the plastic material. Pay close attention to areas around the tap, as leaks often occur at threaded joints or connections.
Pressure Testing: Fill the container with water and apply gentle pressure. Observe carefully for any signs of water escaping or dripping from the container. This method will help you identify the exact location of the leak, whether it is around the tap, at the seams, or elsewhere on the container.
Thread Inspection: If you suspect the leak is around the threads of the tap, wrap the threads with Teflon tape, also known as plumber's tape. This tape is designed to seal threaded joints and is commonly used by plumbers. Wrap the tape around the threads 5-6 times, and then screw the tap securely into the threaded hole. This simple solution often effectively resolves minor leaks.
Sealant Application: In some cases, a stronger adhesive or sealant may be required. Before applying any sealant, ensure that the leak area is clean and dry. You can use plastic glue, epoxy, silicone sealant, or a two-part adhesive specifically designed for bonding plastics. Follow the manufacturer's instructions for proper application, as different adhesives have varying curing times and processes.
Reinforcement Techniques: For added reinforcement, consider using a combination of sealants and mechanical fasteners. For example, you can apply PVC glue to the threaded areas and use PVC cement to secure fittings. Alternatively, wrap the threads with Teflon tape and then apply silicone sealant between the barrel and the spigot flange for an extra-secure connection.
Leak Prevention Measures: To prevent future leaks, avoid exposing the plastic container to extreme temperatures, direct sunlight, or excessive pressure. These environmental factors can weaken the plastic, making it more prone to leaks. Additionally, ensure that the container is not subjected to harsh chemicals, as these can degrade the plastic over time.
By following these comprehensive testing and prevention measures, you can effectively identify and address leaks in your plastic container with a tap installation, ensuring a strong and durable seal.
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Frequently asked questions
To put a tap in a plastic container, you will need to drill a hole and screw a faucet into the hole. You can also use thread sealant on the bib you screw into the threads.
You will need basic tools such as a drill, a faucet, and thread sealant.
You can use a ball valve style tap or a plastic gate valve, which is commonly used by pond enthusiasts.
The size of the tap will depend on the size of the container and the hole you drill. Common sizes include 22mm and 28mm for the tank/skin fitting and ball valve, respectively.
Yes, it is recommended to use thread tape when connecting valves or plumbing to the bulkhead fitting. Additionally, you can use PVC glue and cement to secure the fitting in place.










































