Star Brite Spider & Bird Stain Remover 650ml

Spray directly on droppings, saturating them. Allow it to penetrate the droppings for 30-45 seconds before gently scrubbing with a boat brush. Rinse well with fresh water. Stubborn or sun-baked droppings may require a second application. Test for effect on color in an inconspicuous area before proceeding with overall cleaning.