WOTC Extra – Blue Water
Blue Water Blue water is used for peace and protection, but also to dispel evil and negativity from a house.
Blue is the colour believed to be best at warding off evil and providing protection.
To make blue water use a glass and fill it with spring water or tap water with a teaspoon of salt added to it. To make it blue you can either use blue food colouring or laundry bluing (laundry bluing isn’t so easily found in the UK). You can also add a drop or two of Florida water to it for added power. Charge the water with your intent, or draw a cross three times over the top of the glass to empower it, then leave the glass in a prominent place in your home. Change the water regularly.
Source:Pagan Portals – Hoodoo: Folk Magic Patterson, Rachel