A pool can start at 150,000 and go up from there depending on features, decking and finishes.
A salt pool is a pool or spa that uses salt to produce natural chlorine.
Winterization of a swimming pool consists of blowing all the water out of the pipes and air locking them. You drain all the water from the pumps, filter and heater. You will also add slow release chemicals that will keep the water clear throughout the winter.
This is a loaded question when building a summer luxury item in a winter climate. It ultimately comes down to what value the buyer of your home sees in your pool. It could be all little as 25% of what you spent all the way up to 150% of what the project cost.
There are many variables to determine the maintenance required for a particular pool. Automatic covers, chemical systems and size will determine this. You can count on cleaning it and testing chemicals at least one time per week. This entire process should not take more than an hour.
This also depends on the size of the pool, size of the circulation pump, how long the pool will be heated in the spring and fall, and how efficient your heater is. An average to run the pool from Memorial Day to Labor Day would be around $150 per month. This number increases as you take the season into the spring or fall months when heating is required.