Answers

A concrete pool can be a better option as it reflects back the stylish arrangement of the pool. It seems to be really trendy which most of the people are preferring to build in their new home. Moreover, buying the stylish set of a sofa which can be kept outside near the pool is another option you can choose to go with as it will add extra beauty to your backyard. A number of people are heading towards the genuine store like office furniture solutions in order to get the fair deals in buying furniture. If you want, you can also go this way and can give a new look to your backyard this time.

I do not work on pools, but used to have an in ground with vinyl liner in my home.  The first thing that came to mind when I started reading your post was switch to salt water.  Then I read that you mentioned that!  I don't know all the benefits why you should, but I thought the largest were that they are easier to maintain and don't require as much chemical as a chlorinated pool.  Some people I know say that they are much more enjoyable to swim in as well.  

Great questions. Answer will depend on your overall renovation budget and projected use of the pool.

You may wish to track your use and cost (maintanence, electric, water, personal hours cleaning, chemicals)  for one year to help assist you with a renovation option.

Galloway Roofing & Siding does not work on Pools.

I know i am late but for future people reading through this should also consider automatic pool covers if you are looking for all year round safety.  The safety covers mentioned above are more for winterization or covering your pool during a time you dont want to use it.  They take time to install and are not an in season friendly option.  

automatic safety covers like coverpools are a key switch operated safety cover that covers and uncovers the pool in a matter of seconds.  When installed by a professionaly trained installed they can easily hold the weight of multiple adults and children.

Start by doing some research for your local area.

What type of pools work best for your ground condition; Gunite, Fiberglass, Vinyl Liner, Above Ground, etc?

If it is gunite, what style do you want; Freeform, Geometric, Lagoon, Modern?

Do you want a spa?  Do you want a waterfall?  Do you want to heat your pool?

What materials catch your eye?

Create a portfolio of pictures of pools that you like, this will help the designer really understand waht you are looking for.

Check out the companies that you call.

How long have then been in business?

Are they members of BBB?  Rating?

Do they have an office or do they work out of their house/truck?

DO they have insurance?!?

In the Houston Metro Area our customers expierience an annual cost of about 1,500-2,000,  this includes electrical, gas, and chemicals.  

These numbers represent an average sized pool, average spa usage, and properly maintained pool chemistry.

There is several different places you can purchase these. Walmart has some option, home depot, bed bath & beyong, etc. Maybe check these places online and see what they have. It would probably be very simple for you to find the best product online, otherwise try calling one of those store to ask if they have any in stock!

I'm not familiar with cartridges but you can buy an aromatherapy canister (hot tub warehouse online has them) in which you put aromatherapy beads whichare available many places (such as spa depot). You can add aromatherapy beads and liquid directly into the spa as well.

If you are installing a Hot Tub you will need a Concrete base or a solid base of Pavers or Stone, it must be level to distribute weight evenly. This ensures no water damadge to the bottom of the unit as well if there is any type of warranty on your unit the base insures you are covered for certain damages. I always suggest to my clients they should read the manual and installation instructions to see why they are installed the way they are. Below I have attached some alternitive options for a base other than concrete. I hope this helps!! wood and Flagstone option below. the 220V is important because you want to know your electrical will no fail without enough support, you will need a dedicated breaker with the 220V which any Electrician with your company or the clients will be able to do this. it will make it through think and thin. 

Yes you really should.
With freezing temps, frost, and the funny movement of the earth and setteling its best to just do it right the first time.

Pour a 4" slab with some 18" OC Rebar (18" on center).

Hook up the 220v with a dedicated breaker and walk away knowing that it will last for YEARS!