ok, pool gurus...i screwed up. i went to all the local pool stores to see if they had any taylor kits and only one place had any, and all they had was the k-1004, so in my haste to get a test kit a.s.a.p. i got it. upon checking it out, i found it didn't test for cya and, as well, it only reads up to 5 when testing for clorine. as i've read on many posts here, i need to be able to maintain shock at around 15 (as per the pool calculator) and beings my kit won't read to 15, i've just been guessing at my shock level. i think i need to get a better test kit, but i need to make sure the next one i get is the RIGHT one. the water has been clear using this kit combined with some strips to guesstimate cya, but the water is starting to go cloudy on me and i don't know why. i've got a big 4th of july party coming up and i wanna make sure the water is clear, so i wanna get a new test kit NOW ! so i ask you, oh experts of the pond, which kit can i test higher clorine levels with as well as cya and all the other stuff? i will call to some other pool stores to locate whatever y'all suggest, but if i don't find it, how fast do they ship from the place you recommend here at TFP ? thank you all so much for your advice.