new 400 gallon hot tub (Marquis 660) - added well water. have a softener. ran for the last 2 days and added some bleach initially (about 15-20 ounces, or 1/8 bottle of 8% bleach) since i thought BBB was the way to go. here are the 1st test results:
8.4 ppm FC
1.0 ppm CC
90 ppm TA
CH too low to measure - stays blue
Using Taylor k-2006 test kit.
The softener for our well takes out high levels of iron and manganese. As a result, the water is very soft.
Currently the hot tub water is nice and clear, but smells strongly of chlorine.
I figured I need to shock it so I added 4 tsp of dichlor per the "superchlorination" instructions on the bottle.
I wanted to lower pH so I added "pH down" per the instructions on the bottle, 3 tsp dry acid.
The manual says "Dont use soft water" so after those chemicals settle in I plan to add some calcium chloride (pool calculator says to add 20 oz to get to 260 from "zero" -- not sure if I am at zero. The user manual recommends a range of 200-300 ppm.
Am I on the right track?
Thanks in advance for any help you might offer.
PS the spa store set me up with a nature 2 cartridge to put in the filter, but i read a lot of negative comments on that mineral sanitizer so I have not put it in yet.
If anyone recommends it or uses it please advise, thank you!!