Looking back, we've made remarkable progress since that spring day in 2025 when I first imagined building a robust water filtration system for our overlanding trip through Spain.

During three weeks in the summer of 2025, we put the Pump Case to the test in some of the harshest climates imaginable. We were convinced: this modular multi-stage filtration system — featuring activated carbon, a nano membrane, and a UV sterilisation unit — was something special. That's when we decided to make it open-source and share it with others. Our mission: a reliable, repairable system for everyone.
Now, after setting up our business in Austria, we are ready to offer our Pump Case Build Guide to you!
We hope, you'll enjoy building and we are looking for your review and feedback!
Thank you for your support!
Kathrin & Sebastian from WeissExplorers
