1. Remove the screens (aerators) from the end of the faucets and run all of them wide-open simultaneously for three to five minutes. Removing aerators before flushing the plumbing prevents dislodged organic matter from accumulating on the aerators.
2. Flush each toilet two or three times while the faucets are running. Running all water faucets and toilets simultaneously generates a large flow of water through the pipes. This should help remove any water that may have been sitting in the pipes for a long time.
3. Let the water run for three to five minutes then turn off the water faucet. Clean the aerators and reinstall them on the faucets.