Drinks made from tap water or with tap water ice are unsafe. Schisto parasites, carried by snails, may be present in freshwater lakes and streams and can cause a very unpleasant disease. Swim only in fresh water that has been tested and declared free of such parasites. Because of the heavy undertow, the ocean is a dangerous place to swim. Use extreme caution and then only in recommended areas.
Some porches accumulate dangerously slippery mold during the rainy season.
Treat with a combination of boiling water, chlorox and detergent, followed by scrubbing with Ajax and a stiff brush or steel wool. Chemical drain cleaners will stop some bacterial action in the septic tank but can also cause problems if your plumbing contains lead. If air does not circulate freely in your house, keep a fan going when the house is shut up so that the furniture will not mildew. Keep candles, matches and flashlights in familiar locations so that you may find them easily when the electricity fails. Iron all clothes which have been hung outside.