Why is documentation so important in this industry? You must keep records to help us help you. Without them, it may be your word against the claimant’s if something was to go wrong. In this day and age, when you are forced to defend yourself in court (even if you have done nothing wrong) simple documentation should not be considered a hassle, but a tool. There are documents required by law that you must have, like pool water results; and there are also documents which you should be keeping for evidence that you are on top of the daily operation of your business, like a maintenance or complaint log.