Opportunistic feeders, their diet varies from one region to another. In the Antarctic, killer whales eat about 67% fishes, 27% marine mammals, and 6% squids. Killer whales in the Bering Sea (near Alaska) eat about 65% fishes, 20% squids, and 15% marine mammals.
Even though your shower grout looks dry, using it too early or sealing it before it's ready may damage it, leading to premature failure. Most cement-based grouts require a cure time of 48 to 72 hours before applying a penetrating sealer.
It is not necessary to seal pavers. Sealing does however retard fading of paver color and provides a measure of protection from some stains. Before sealing, pavers must be clean and dry.It is recommended that you wait at least 30 days after installation before sealing. Once sealed, you will need to re-seal approximately every two to three years.aver installation should start with the proper base material for the job. Crushed rock with approximately 1  of concrete or gunite sand is recommended. Installation of proper edge restraints is key to preventing spreading of pavers.