If you have an air compressor, a siphon-type spray gun is a very effective tool to apply fungicide in a gutted house. Home Depot sells a $12- $13 Husky sand blasting gun that serves just as well to spray liquids. With one hose attached to the air compressor and the siphon tube in a bucket of fungicide mixture, the gun sends a powerful, well-directed spray against the area being treated. It speeds the work by "light years," as my son said. Be sure to wear protective clothing and a mask.

Fred Wild