Â· Modern Use. Today, basalt is used to a lot of things. Most common use of. is as aggregates. Basalts that are crushed are used for construction purposes, like asphalt paving, concrete aggregate and rock filtering agents. Basalts are added as aggregates to increase strength to concrete. Modern Use. Today, basalt is used to a lot of things. Most common use of. is as aggregates. Basalts that are crushed are used for construction purposes, like asphalt paving, concrete aggregate and rock filtering agents. Basalts are added as aggregates to increase strength to concrete.
Typical filtration cycles are four hours, twice per day (for hot tubs operating a single or two speed pump). Reducing the cycles to 3 hours twice per day will save water pumping energy. These circulation times should be set for off-peak hours. (Some hot tubs have small, low wattage circulating pumps that run 24 hours a day. Typically these draw less energy than a 100 watt light bulb.
No young child should be allowed in a hot tub until they can stand on the bottom and have their head remain completely out of the water. Children who are big enough to be in a hot tub should not use it for more than five minutes at a time, especially at the maximum temperature of 104 degrees.Dropping the spa temperature to 98 degrees would allow for longer soaks â but never more than 15 minutes at a time.ot Tub Safety Tips. Infants and toddlers should not be permitted in a hot tub at all as babies' thin skin makes them more susceptible to overheating. Also, since little ones have very little control over bodily functions, spas become unsanitary almost instantly when accidents happen.