It makes no difference how old the concrete pool is, or whether piping is copper. Better not to have a very old stainless steel filter or metal pump. The very low salinity used with latest saline systems is generally not corrosive.
yes, if 18 or older
Older concrete bridges deteriorate because of vibration and earth movement.
Both, usually move to saltwater when older, but not always
I'm having a little with trouble converting Centigrade to Fahrenheit. Centigrade is an older name for Celsius.
No, that is not a problem.
Older vaults were made of steel-reinforced concrete. The walls were also very thick, which made the vault very heavy. Nowadays vaults are made of lighter and thinner concrete with additives which give the concrete extreme strenght.
Gypsum slows down the setting of cement. Although the terms cement and concrete often are used interchangeably, cement is actually an ingredient of concrete. Concrete is basically a mixture of aggregates and paste. The aggregates are sand and gravel or crushed stone; the paste is water and portland cement. Concrete gets stronger as it gets older. Portland cement is not a brand name, but the generic term for the type of cement used in virtually all concrete, just as stainless is a type of steel and sterling a type of silver. Cement comprises from 10 to 15 percent of the concrete mix, by volume. Through a process called hydration, the cement and water harden and bind the aggregates into a rocklike mass. This hardening process continues for years meaning that concrete gets stronger as it gets older. So, there is no such thing as a cement sidewalk, or a cement mixer; the proper terms are concrete sidewalk and concrete mixer.
the problem could be that the babyies cant do any thing properly when they are older and they may start having problems
Ground water can get into most older septic tanks through gaps in the concrete.
mental illness means to me is like when you have a problem when you are younger and as you get older you get rid or it
If you really love her that's isn't the problem.