Water filter for a underground tank

Water Filter for a 1500L Underground Tank

To store water, I buried a 1500-liter tank in my garden.

I also wanted a filter system that would allow leaves and debris to be flushed away to the sewer. Unfortunately, the commercially available filters were far too expensive, so I decided to design and build my own.

This filter is designed to work with standard 110mm PVC piping.

Materials

For printing (ABS / PETG / ASA — I personally used ASA):

• 6x M5 heat inserts
• 6x M5x10 button head screws (A2 or A4 stainless steel)
• 2x 110mm flexible couplers
• 1x 110mm PVC pipe (255mm length)
• 1x piece of fine mesh
• Zip ties

Print Settings

• Print the water filter housing upside down (with the bottom pipe facing upwards).
• Print the lid upside down as well.
• Print the handle with support enabled.

Assembly Instructions

1. Cut a 255mm length of 110mm PVC pipe.
2. Drill multiple holes evenly around the pipe so water can flow through it.
3. Wrap the fine mesh around the pipe and secure it tightly using zip ties.
4. Install the heat inserts into the housing.
5. Assemble the filter using the stainless steel screws.
6. Mount the filter between the 110mm PVC inlet and outlet pipes of the tank using the flexible couplers.

P.S. make sure you have a lit on the tank. Other wise it will get dirty like mine….