time and prepared for processing as a single unit or batch. Example: A cheque processing system in a bank. All the cheques received in a particular time frame, say on a particular day are then sorted by the account number and processed in a batch. The following diagram shows the Batch transactions processing application.
When the rubber flapper is compromised, it allows water to run out of the drain causing the toilet to constantly refill. Replacing it is easy--replacements are available at most hardware stores or home centers. Be sure to take the old one with you to find a correctly matching replacement.
Another common problem is a humming noise when the toilet is flushed. This can be caused due to a worn valve diaphragm washer, which is a relatively easy repair. All you have to do is replace the washer. Always remember to turn off the water supply first.