Assuming you have reasonably good tap water, for a 3300 gallon pool you will need to add about 1 pound of dry stabilizer to keep your chlorine use down, this should put your CYA around 40 (a good starting point), initial chlorine dose should be around a quart of 6% bleach, you will need a test kit soon afterward to maintain it at the correct level. And you will need to adjust the PH, again if you have good drinkable supply water, your likely in the 7.something range, the general advice is pools should be somewhere in the 7.2-7.6 range, a simple $10-15 drop test kit will tell you all you need to know on this, don't trust the dip strips. You will need a better kit to fine tune and tell when to shock (when combine chlorine gets too high) , alternatively you can use the cheap test kit to keep the total chlorine at good levels, and shock often, more often than you need to, I would suggest using a non-chlorine shock if you go this route, like HTH shock N swim, this way you don't have to wait a long time for chlorine levels to fall on a small pool it is cheap enough.