Always use DISTILLED water – never use tap water - As your jelly starts to shrink you may add more distilled water. Once the scent is no longer strong enough add more fragrance oil.
To keep your smelly jelly from becoming moldy it is a good idea to add a tablespoon of alcohol every time you add water.
DO NOT GET THEM IN YOUR DRAINS – IF YOU DO FLUSH DRAINS WITH WATER THAT HAS LOTS OF SALT ADDED TO IT you can even pour salt directly in the drain – SALT MELTS SMELLY JELLIES.
PLEASE NOTE: If you think your smelly jelly is not working in a room - Walk out of the room to the outside take a deep breath and then come back in chances are your senses have gotten use to the fragrance and once you come back in you will again be able to sense the fragrance in the air. For a more intense fragrance release place on a candle warmer or coffee cup warming plate.
For large rooms such as living rooms or large bedrooms I suggest 2 - 3 smelly jellies. I have used 2 or more of a commercial made air freshener in my larger rooms as one of them will not fragrance the entire area.