I have a Taylor kit. Its actually a Leslie pool kit but is all Taylor reagents and Taylor name on the inside. Its basically a Taylor but simply rebranded. I don't know the taylor kit number as its not indicated anywhere but it has all the pieces for chlorine. alk, cya, hardness,,,etc. My issue is the small CYA tube. Uou know its like 1/4" wide and I have difficulty determining when the dot is fully gone.
One mf my issues was CYA (very high) which caused me to drain 40 to 50% of my pool and refill. It seems to me (via this small test tube) I think I see about still near 90ish. But taking it to the store where they use the giant size tube with the larger black dot it comes up at 50. It also comes up about 50 via test strips which I know are not accyrate but it does coincide with the 50 at the pool store. I also tested again at the store a couple days later and still came about 50ppm.
So with that said I was looking for the larger test tube with larger black dot and also is the one in which you lower the black dot into the test water till it disappears to get the reading. I see on this site you guys seem to sell a cya test tube that "seems" a little larger than the standard small one but hard to tell how much larger it is but yet still seems much smaller (I think) than the very large ones like at the store which seem to stand about 6" high and 1/2" diameter with nicely sized black dot on a stick. Just so easy to read vs my tiny tube.
Problem is none of the larger (similar to the pool store) I have been able to find are taylor. They seem to be "blue Devil" or Pentair. I don't know if either are as reputable as taylor. They also then have their own reagent which again (I guess I don't mind buying) but don't know how reputable they are.
What are suggestions. How large is the tube sold here and or what about those very large ones from those other companies. Its something I know I wouldn't need test all the time but since I did have the problem I want to now make sure the level is what it is and also will keep an eye on it.