that substance is clorine
The material you are likely referring to is called shotcrete, not shockcrete. Shock-crete is a flooring material and not used for swimming pools that I know of. Shotcrete is sprayed onto surfaces (like pools) that contains a primer and a type of polyurethane topcoat that contains an aggregate that finishes off looking like concrete in most applications. it is used mainly to apply monolithic linings that have a good chemical resistance. it is often used in pools, tunnels, etc., much like gunite i think its is concrete injected into the ground to firm up supports and the ground.
they need white chalk or any kind of regular chalk not like 3 d or colored chalk
Wood wall pools will often deteriorate faster than traditional galganized steel wall vinyl pools. Vinyl pools are the most economical where as concrete pools tend to be more luxurious. If you want to see a side by side comparison of all different types of swimming pools you can choose from at www.BuyPool.ca which is an article comparing the purchasing quality of: -Vinyl liner abover ground pools -Vinyl liner in ground pools -Concrete or gunite in ground pools -Fibreglass pools
The chalk-like substance is, in fact, chalk.
If you live in America and believe in American culture then you can draw any thing you like to draw!
Soil forms from ground rocks and organic material like compost.
u dont know that they might like chalk
u remove your pants and expose your dick and colour it chalk. it acts like chalk
Some people like to eat chalk because they think it taste good.
Chalk... it's like deer.... I saw a deer, I saw a few deer.... it's the words around it that define whether or not it's plural I have lots of chalk. I have a piece of chalk.
Most are made of plastic of some sort. Much like children's inflatable swimming pools or beach balls, only a thicker material.
Most chalk sold in regulated countries is non-toxic and comes from natural minerals like calcium mined from the ground. If it wasn't sort of dirty, it might actually be good to eat since it's mostly made of calcium. But you shouldn't eat it on purpose.Some people have a mental disorder known as pica and actually eat chalk without any poisoning.Chalk is used mostly in schools around children and probably is not a problem.You can look up the safety sheet on almost anything you can think of- these sheets are called "MSDS" sheets (Material Safety Data Sheets).An MSDS for chalk is here:http://www.sciencestuff.com/msds/C1423.html----