Hot Spring hot tubs has certified all models to the California Energy Commission (CEC) in accordance with California law. With California setting the standard for energy-efficient hot tubs, you can have peace of mind knowing that your spa is designed to keep operating costs low no matter where you live. Hot Spring Spas received the ENVY Award for energy-efficient hot tub design in 2008.
A sedimentary rock is a layered rock that is formed from the compaction, cementation, and the recrystallization of sediments. Compaction is the squeezing together of layers of sediment due to the great weight of overlying layers of rock.
Sedimentary rock Sedimentary rock is one of the three main rock groups (along with igneous and metamorphic rocks) and is formed in four main ways: by the deposition of the weathered remains of other rocks (known as 'clastic' sedimentary rocks); by the accumulation and the consolidation of sediments; by the deposition of the results of biogenic activity; and by precipitation from solution.