Where in south africa is hard water a problem and how it can be dealt with

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.

i need with 1.3.2 investigate cycling o2 and co2 apex

we need to see it