Height-Adjustable Float Valve Holder

Height-Adjustable Float Valve Holder (Manual Float) – 6mm Glass

Maintaining a constant water level in the aquarium or top-off reservoir is essential for salinity stability in marine systems. This Adjustable Float Valve Holder has been specifically designed to install a manual float connected directly to your RO or top-off system, ensuring a secure attachment and millimeter-perfect adjustment.

The design is optimized for 6mm thick glass and includes a vertical rail system that allows for very easy adjustment of the float's height. This way, you can set the exact water cut-off level your sump or tank needs without having to move the entire glass holder. Additionally, it is firmly secured by a rear set screw to prevent any accidental movement that could cause an overflow.

🛠️ Required Parts

To assemble this level control system, you will need to print the following components included in the project:

3D Printed Components:

• Glass Mounting Body: Main part with a custom slot for 6mm glass and a vertical guide rail.
• Adjustable Arm for the Float: Sliding support with the standard hole to house the manual float valve thread.
• Glass Securing Screw (x2): Wide-threaded screw to securely fasten the holder to the edge of the glass.
• Height Locking Screw (x2): Screw responsible for securing the adjustable arm in the desired vertical position.

Additional Materials (Not included):

• Manual float valve: Standard connector for $1/4$-inch RO tubing.
• RO tubing: Direct connection from your filtration unit or water reservoir.

💡 Recommended Printing Parameters:

• Material: PETG. Being in continuous contact with top-off water and sump humidity, it is essential to avoid PLA to prevent plastic degradation in the medium term.

   

📐 Assembly and Configuration Instructions

1. Float Assembly: Insert the thread of your manual float valve into the hole of the printed adjustable arm and secure it firmly with its corresponding plastic nut.
2. Glass Mounting: Place the base of the holder on the 6mm glass edge of your tank or sump. Hand-tighten the rear securing screw until the holder is completely firm (avoid using tools to prevent damaging the plastic thread or stressing the glass).
3. Height Adjustment: Slide the arm with the float along the vertical rail until it is positioned at the desired height for the water cut-off. Once in place, tighten the front locking screw to secure the position.
4. RO Connection: Connect the tubing from your direct osmosis system to the float connector and perform a controlled filling test to verify that the float correctly cuts off the flow when the set level is reached.

☕ Support my DIY Aquarium Designs

Designing functional solutions that solve everyday problems in our aquariums requires many hours of modeling, tolerance testing, and material expenditure on prototypes.

If this holder is useful for automating and securing your system's top-off, I would greatly appreciate it if you consider supporting me in my Patreon community. You can contribute starting with a basic subscription worth 1 coffee to help me continue developing new projects:

🔗 Patreon - DuritosReef 3D Models

Don't forget to upload a photo of your setup in the Makes section and leave a 5-star rating if the design has been useful to you! Your feedback greatly helps to keep contributing to the community.