Pumpless DIY Pure Water Machine: Step-by-Step Guide
If you're looking to have a pure water machine without the need for a power source, you can build a pumpless version yourself! This guide will walk you through the process, and it's perfect for situations where you have stable water pressure from the tap.
Step 1: Gather Your Materials
To start, gather the necessary materials, including a 50G reverse osmosis (RO) membrane. However, if you want compatibility with other pure water machines, consider using a 3013-type 400G RO membrane. You'll also need a pressure storage tank to ensure a steady water supply.
Step 2: Construct the Frame
For the frame, use 15×15×1mm stainless steel angles. This will help keep the overall size of the machine compact while maintaining strength. To connect the angles, utilize a DIY microwave oven transformer spot welding machine for secure and robust welding.
Step 3: Welding Tips
When spot welding, ensure each joint has at least two strong solder points. While five points are preferred, two will suffice in most cases. If you're unsure about the strength, opt for five points as shown in the provided diagram.
Step 4: Using the Spot Welding Machine
You can create a spot welding machine using a 900W microwave oven transformer. This will work well for spot welding 1mm thick stainless steel, although you might need to adjust the time to 200 milliseconds for optimal results. If the welding time is too long and leads to discolored solder points, use passivation paste to address the issue.
Step 5: Welding Needle Considerations
For the welding needle, make it from purple copper. However, bear in mind that purple copper is not very heat-resistant. You'll need to sharpen the needle before each use to prevent it from burning out prematurely. If you're worried about the needle's durability, you can consider purchasing welding needles online, although they might not withstand high power and prolonged use.
Step 6: Designing for the Future
Keep in mind that your pumpless pure water machine may be upgraded to include a pump in the future. When designing the frame, consider adding structures to accommodate a pump if needed later on.
By following this step-by-step guide, you can create a pumpless pure water machine with excellent performance and a sleek design. Enjoy the benefits of pure water without the hassle of relying on a power source! Remember to be cautious while spot welding and use the appropriate materials for the best results. Happy DIY-ing!
