Thanks to TFP, good forum advice and conversation, and some relatively simple investment on my part to understand most of the details, I have gained confidence and feel very comfortable now, having taken ownership of a 3000+ gallon indoor Endless Pool. Having procured a TF-100 test kit, I have learned to use it and have established what I think is very stable pool chemistry. . . but I think there will come a time I need to re-evaluate what I think I know about my setup.
First, my pool is relatively small I think. Certainly more than a spa, but not so big that I need help. Second, the TF-100 test kit has proven its value over and over, giving me the confidence to make adjustments (using the Pool Math App as a guide). Here is my routine:
Pool is heated to 80F. Filter runs on timer, about 4-5 hours per day. Pool stays tightly covered with a security cover. Pool is rarely used--one swimmer for an hour, maybe once per month!
Once per week, or every other week:
Tests almost always show pH around 7.5.
FC can test around 1ppm -- I will then add about 8oz of liquid bleach to bring to 3ppm
CC is NEVER above .5ppm
TA 80ppm
CYA 20ppm (pool is indoors, remains covered)
My water is clear. I don't have an algae issue. No bugs or debris. Skimmer is always clean. Filter is always clean. I am basically maintaining a crystal clear pool that doesn't get used much at all right now.
So, as you can see, my routine for the past 10 months is to regularly check chlorine to make sure I don't run into a problem. That's like a cup of chlorine only, every week or two, and an occasional spoonful of something to balance the PH. I don't worry about CYA, as there's no sunlight to break down effectiveness of chlorine. Sure, if the pool starts getting used a lot, I will have to watch closely.
My question is this: If I am adding a cup of chlorine every week or two--and CC is not an issue, and FC stays between 1 and 3ppm, that added chlorine over time is eventually going somewhere. According to another thread, it's combining with sodium and becoming salt. So, does that mean eventually I will need to do a massive water change? I have only added water to the pool twice. The cover keeps it from evaporating, so we are talking about running a hose for like 10 minutes once every six months--hardly even visible--waterline changes like half an inch.
Do I need to add some other test kit reagents to my TF-100 to check how much NaCl is building up to indicate a water change is needed?
First, my pool is relatively small I think. Certainly more than a spa, but not so big that I need help. Second, the TF-100 test kit has proven its value over and over, giving me the confidence to make adjustments (using the Pool Math App as a guide). Here is my routine:
Pool is heated to 80F. Filter runs on timer, about 4-5 hours per day. Pool stays tightly covered with a security cover. Pool is rarely used--one swimmer for an hour, maybe once per month!
Once per week, or every other week:
Tests almost always show pH around 7.5.
FC can test around 1ppm -- I will then add about 8oz of liquid bleach to bring to 3ppm
CC is NEVER above .5ppm
TA 80ppm
CYA 20ppm (pool is indoors, remains covered)
My water is clear. I don't have an algae issue. No bugs or debris. Skimmer is always clean. Filter is always clean. I am basically maintaining a crystal clear pool that doesn't get used much at all right now.
So, as you can see, my routine for the past 10 months is to regularly check chlorine to make sure I don't run into a problem. That's like a cup of chlorine only, every week or two, and an occasional spoonful of something to balance the PH. I don't worry about CYA, as there's no sunlight to break down effectiveness of chlorine. Sure, if the pool starts getting used a lot, I will have to watch closely.
My question is this: If I am adding a cup of chlorine every week or two--and CC is not an issue, and FC stays between 1 and 3ppm, that added chlorine over time is eventually going somewhere. According to another thread, it's combining with sodium and becoming salt. So, does that mean eventually I will need to do a massive water change? I have only added water to the pool twice. The cover keeps it from evaporating, so we are talking about running a hose for like 10 minutes once every six months--hardly even visible--waterline changes like half an inch.
Do I need to add some other test kit reagents to my TF-100 to check how much NaCl is building up to indicate a water change is needed?
