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.
Toilet fill valves can go bad and no amount of adjustment will fix the problem. After adjusting the float you still cannot get the water level correct, the only recourse is to replace the toilet fill valve. See the article 'Toilet Fill Valve Repair' for instructions on how to solve this problem.