- Nov 5, 2008
- 2,598
That's weird about the FC test today ... the FC level should have dropped more than that in a day. Oh, do you still have trichlor pucks in an automated chlorinator? Or is there a floater with a puck or several still in the pool? You must take all those things out of the pool. Otherwise, your testing methods are suspect.
Also, you need to keep practicing on the CYA test. That level should not change by very much on it's own. Next time you do the test, pour all the mixture back into the little bottle and do it again, and again, then ask someone else to read it for you. You need to be in bright light, outdoors with sun at your back. You are looking for the black dot to dissappear, not for the whole sticker to go away necessarily. One person has suggested filling the tube to the next line before looking for the dot again. I think that works well, then you can pour it all back and try to fine tune it to the nearest 10 or 5 pts.
As for the tap water, that is high CH and TA is rather high as well. Good to know that for every time you add water these numbers will increase some. We knew the tap water would have no CYA. As for the FC, had you tested for CC, you may have found that. This would indicate chlormines instead of chlorine being used.
Also, you need to keep practicing on the CYA test. That level should not change by very much on it's own. Next time you do the test, pour all the mixture back into the little bottle and do it again, and again, then ask someone else to read it for you. You need to be in bright light, outdoors with sun at your back. You are looking for the black dot to dissappear, not for the whole sticker to go away necessarily. One person has suggested filling the tube to the next line before looking for the dot again. I think that works well, then you can pour it all back and try to fine tune it to the nearest 10 or 5 pts.
As for the tap water, that is high CH and TA is rather high as well. Good to know that for every time you add water these numbers will increase some. We knew the tap water would have no CYA. As for the FC, had you tested for CC, you may have found that. This would indicate chlormines instead of chlorine being used.