So all most a month ago me and my hubby went to get a very small pool for the kids and walked out of the store with at 15ft by 4ft pool that is 4 ft deep. Needles to say I have not been able to get the chemical levels right from the get go. went to pool store 3 times and each time walked out spending $60.00 or more and have yet to get any clorine to show up when i test the water. Water has been getting cloudy and a slimy film on sides and bottom of the pool. I am so glad I found this web site I was ready to pack the pool up and count my losses. I still have a lot to learn and I need to get a good test kit. But here I go on the hope of getting a crystal clear pool to enjoy. Going to get started tomorrow! 
Update: So I used the pool calculator and I added 44 oz of household bleach to the pool last night before I went to bed. I went out there and tested the water with my basic poolcare DPD test kit and it now reads that the Cl is at 2 or 4 (can't tell how to read it all the way yet) and my PH is at 7.5. I am so excited that the CL is finaly showing up when I test it. :-D

Update: So I used the pool calculator and I added 44 oz of household bleach to the pool last night before I went to bed. I went out there and tested the water with my basic poolcare DPD test kit and it now reads that the Cl is at 2 or 4 (can't tell how to read it all the way yet) and my PH is at 7.5. I am so excited that the CL is finaly showing up when I test it. :-D