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.
Test the Flush. If other drains seem to be working fine, check the problem toilet by dumping about 1 gallon of water into it from a bucket. If it flushes down fine, the drain is probably okay. If it flushes poorly, the drain is probably clogged (see above). When you flush a toilet, clean water in the tank goes rushing down the flush valve to wash the bowl and provide enough water pressure to force the waste down the drain. If your toilet has a lazy flush but the drain seems to be clear, poor movement of water from the tank to the bowl is likely to be the problem.