Buffer and added hardness do the same thing in a salt water pool as in a fresh water pool. The buffer (sodium bicarbonate aka bicarbonate of soda) stabilizes the pH of your pool so that addition of acid or base doesn't change the pH very much. The hardness, mostly Calcium, helps achieve water balance to make the pool neither deposit (precipitate) excess Calcium Carbonate to your pool surfaces nor corrode (remove) Calcium from your plaster pool surface. The combination of pH, Total Alkalinity (adjusted for Cyanuric Acid), Calcium Hardness, temperature and Total Dissolved Solids determines whether your water is balanced. Just keep these values near their recommended amounts for your pool and you should be fine. If you're a techie and want the full formulas, do a Google search for "Langelier Saturation Index".
NO cant be done
Probably the least expensive is to replace some or all of the water(dependind on hardness) with fresh.
Buffer should be added.
Since a saltwater pool IS a chlorinated pool (the only difference is how the chlorine is addded since it is manufactured by the SWCG and not added separately) the answer is yes.
No, a saltwater pool does not need to be covered.
You can heat a saltwater pool. Options for heating your saltwater pool include solar heating, electric heating, and gas heating.
Many people will say that saltwater systems are as good for your pool as chlorinated systems. Saltwater systems are not as harsh on your pool system or for the people that enjoy the pool itself.
yes, a saltwater system is in fact a chlorine system anyway the difference being that salt is added to the pool and a chlorinator is put inline to convert part of the salt electronically into chlorine.
Hardness increaser from your pool supply company
Yes, it's easy! Just add a saltwater chlorinator between the filter pump and the pool intlet. Then add pool salt. Follow the directions in the manual and you will be swimming in your saltwater pool in 24 hours.
You can attach saltwater system to non-Intex pro series pool.