I am using the TF-100 for the first time in Salt Water pool and could use some help; here's my results:
FC - 3.5
CC - 0.5
Calcium Hardness - 225ppm
TA - 110
CYA - ~32-35
PH - I struggle with reading this one but would guess about 7.8 on the higher side. It always seems to be high even when I use Low & Slo.
I had my water tested at a pool store about 9 days ago. My CYA was low (the reading was 48) and added 0.75KG of Sun Shield Stabilizer (I added it to the skimmer sock). I'm confused as to why it is now reading lower? Should I be using a different product or method to deliver?
Another concern is that I tested at 0.3 Iron at the pool store. I've never had more than 0.1 Iron in the pool and is usually 0. The only thing I've done out of the usual was add 25KG of pool salt and some Stain & Scale control.
There's a fair bit of white/yellow streaking near the skimmer and also on opposite ends of the skimmer from the sides to bottom of pool - any ideas what this could be and how to remove? Some of these marks were already on the liner when we moved in about 9 months ago. I can't decide if they're getting worse or whether I'm simply noticing them more.
Our pool room is fully stocked with the following chemicals (and I mean fully stocked) - I thought we could use these up and then switch to the TFP method - does this make sense?
-Low & Slow
-Stain & Scale Control
-Balance Pak 100
-Balance Pak 300
For the most part I run my Turbo Cell T-15 at about 35%, usually for 8 hours. Sometimes it is run longer if we are heating the pool.
Thanks for your help.
Edit: When testing for CH - should the solution to be a true red or is pink acceptable in order to proceed to the next step?