The addition of ethanol, which is fully miscible in water yet, less polar than Water reduces its solubility. This reduction of solubility results in precipitation of least soluble salts first or the salt which is not soluble in solvents less polar than water.
Pole pockets on banners are something that can cause a bit of confusion. This is compounded by the fact that some companies do things differently when producing banners with pole pockets.
Rod pocket panels can be slid onto the decorative pole and held back with the holdbacks. You can also enhance the decorative component of your drapery hardware by using decorative clip rings, which are sold in sets. Other decorative components to consider are sconces and swag holders.