I somehow got some leaves under the storage cover this past winter and had some staining on the small carpets in the walk-through area. I cleaned them using a standard household carpet cleaning machine in the spring and I thought I got everything out.
While on vacation last week, the carpets got wet with lake water, enough to kickstart the growth of whatever was left in the carpets from the spring. The smell was horrendous. What to do......
I filled a laundry tub with warm water and several scoops of Oxyclean. I let them soak overnight. By morning, the stains and odour were completely gone, much to my amazement. I really never had too much success with the oxidizing cleaners.
Once dry, I treated the carpets with Aerospace 303 for fabrics to give them a bit of stain and water repellency. I should have taken before and after shots!