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.
Broken or failing parts inside the tank (like a fill valve, flapper, ball cock or tank lever) may cause a toilet to run continuously. DIY replacement parts for this problem typically cost $5-$50 depending on the brand of toilet, with an average cost of less than $25. This project might take 20-30 minutes or two hours.