Filtration & Drying
De-watering (Indigo Vat). Extract the nutrient-rich top layer. Use a small bucket or a transfer pump with a hose to remove the brownish-gray water at the surface carefully. This layer is rich in nutrients and ideal for watering your garden (check the pH and adjust if necessary, with vinegar). Avoid disturbing the valuable indigo layer. As you remove the top water, you'll notice a wet, indigo-rich slurry settling at the bottom. Be extremely careful not to stir or disturb the deep blue water beneath—that’s where your indigo pigment resides! Preserve the indigo slurry. Once the top layer is gone, you are left with a deep blue, indigo-rich liquid. Keep it undisturbed to preserve as much pigment-rich water as possible. *After aerating and adding lime, your indigo becomes stable and can be stored for filtering at a later time (the high pH prevents bacteria growth). Keep it in an airtight container with as little air exposure as possible!
28
Made with FlippingBook Online newsletter maker