+1 with Richard.
It just means it went into the pumps impeller and then into the filter and it's dissolving in there. It will still be up to a week till it's going to be reading on your CYA test.
If you backwash before then whatever is still in the filter goes out the drain hose![]()
1. Just to make sure I understand ... IF I don't need to backwash, it will eventually dissolve?
2. My builder is coming over sometime this week with a new pressure gauge for the filter. It has some water sitting in it after just a few days. He's going to replace it for us. He shouldn't need to backwash after that, should he? I can have my wife tell him not to if he doesn't need to.
3. Either way, backwash or not, about a week from today my CYA level is going to be what it's going to be, right?