First thing is First you want to test your water. Doing this now will give you a foundation to build off of.
I recommend you use the POOL CALCULATOR
to help you with your numbers.
Your Free Chlorine(FC)
will be zero. So you want to get some Chlorine in there. Input your current number ( ZERO) and your desired numbers ( follow the TFP recommendations) you want from the Pool Calculator and follow the instructions it calls for.
Next your PH
, More than likely this may be around the range it needs to be for comfortable swimming but if it isn't then again enter the current number and then the desired goal number and Follow the instructions. You will need to add Borax to raise your PH or Muratic acid to lower PH, Depending on your situation, just follow the calculators recommendations and you should be fine.
Your Total Alkalinity(TA)
, will probably be high. It seems tap water in most house holds have a high TA, or at least it could be that way in the south. But none the less test it. If it is high add a little Muratic Acid to lower it. This is kinda tricky because it will also lower your PH levels as well. So add it Wait an hour or so and test again you can bring your PH up by just Aerating the water AKA Splashing or turning the filter pumps nozzle to aim towards the surface of the water.
IF your TA is too low then added some good ol baking soda, via the recommendations the calculator calls for.
For those three things, I recommend you add these in during the evening after the sun is down. If you happen to fill your pool up and it is full before sundown and your kids are like Moooom/Daaaaad when can we swim, it will be ok to let them swim in the pool before you add the chems.. I mean honestly the Easy Set pool is a larger kiddie pool and nothing more. So let them swim and get down to business that same evening.
Finally I left this one for last. Your Cyanuric Acid(AKA STABILIZER) levels.
Your CYA is important because as previously mentioned it helps keep your pools Chlorine in your water longer than with out. Its that simple.
There is a method to adding this. And for Easy Set you will probably get odd looks from your significant other when they see you doing this...
Here is how you add it.
Take a Sock Poor your recommended levels from the Calculator into the sock and then take some string, and tie it off from the opening so it can't poor out. Then take another string ( or same one if long enough ) tie it to your ladder or whatever and position it in a way where the flow from the pump is flowing right through the sock. Let your pump run until there is no longer anything left in the sock.
I would also recommend that you place a wash cloth under the string so it does not put a lot of pressure on your blown up ring. Not saying it will be cause a hole, but you can't be too safe when it comes to such a important part of the pools structure.
So you added everything you were supposed to... Do you feel accomplished? LET your Filter Run and Call it a night.