Water Changes - Overfow vs. Drain-and-Fill
This document is of interest to anyone who keeps Koi. A discussion of 2 different methods for performing water changes is discussed, and myths about the differences are mathematically dispelled. Clear pictures are provided to help visualize the concepts.
This article clearly takes the reader through the mathematical results of changing water using both the overflow and drain-and-fill techniques.
Koi Keepers reading this ebook will become familiar with:
- Where to add water when using the overflow method
- Factors that will effect the result of overflow vs. drain-and-fill
- Koi safety considerations for both methods