lanolize your wool. Lanolin can be bought in the stores where you find
breastfeeding supplies. Use a pea sized drop of lanolin and rub it in between
your fingers to soften it. Then run tepid water over the lanolin as you fill
your basin with water. Let your wool sit in the lanolin water for 10-15 minutes
and soak the lanolin in. When it is finished, drain the water out of the basin,
gently ring your wool out (you can put it in the spin only cycle of your washer
too), and let it air dry. Lanolize 1-2x per month (more if the cover is used
often) to keep the wool's waterproof properties.