Hi I am Mark Williams and on behalf of Expert Village and the producer of this series. You can visit our website at www.williamspictures.net. Storage of chemicals are just important as using them because this what can happen to your trap. Store chemicals in a location that isn't around any faucets and fixtures that has good ventilation and is not around food. So keep in a special plastic ready made cover system that you can buy at a department store, at the hardware store, but do keep these chemicals out from underneath the sink because the more you keep them away from you faucet and fixtures when they don't need to be the longer your fixtures are going to last. So I hope that this series has been helpful in cleaning the minerals and deposits out of your faucet and I hope that this series has also been helpful in selecting you chemicals. Always read the direction on the back of the chemicals before use because sometimes there are exceptions to the applications that they can be use in. Make sure that all the covers are tighten and if the covers aren't tighten just dispose of the chemical properly. I hope you will have good luck in the future with keeping your faucets and fixtures properly maintained so you can get the best value out of your money.