Moblaine's pool

[moblaine]

I did feel a bit like I was being attacked for using the Frog even though I've never had any problems. My pool person (a friend who installs and has one himself) set me up with it and it's worked great for 7 years. This year, my only problem was initially not getting any FC reading and now that I have my Taylor test kit, I'm seeing that my CC is higher than my FC and I attempting to correct that. Various people on this forum started talking about copper in my water but I have verified my copper test is showing no copper and we've NEVER had green hair. So, I did ask King Technology about the copper and they told me there was no copper but by using the mineral pack (which includes silver and limestone) I am able to operate at chlorine levels of 0.5 to 1 ppm but that if I removed the mineral reservoir then I need to do at least 3 ppm. So, I'd like to just resolve my 1.0 ppm CC problem and then worry about algaecide and copper and all that other stuff later. I thank you for all your research into that issue. I saw bucket test directions on this forum somewhere but cannot locate them now. Is there a link?

[PoolDoc]

You can run without the Frog, while you are adding the bleach.

I don't think the Frog is the problem, and it sounds like it may be a better than average trichlor feeder. You pay a premium for it, but if it doesn't bother you, it doesn't bother me.

It's unlikely that the Frog is actually helping you run lower chlorine levels. But, I looked at the patent, and I think it's not impossible -- but the mode of action is probably not what they say. However, my guess is the DE filter helps more.

But, I'm going to make a suggestion: instead of worrying about CC levels, concentrate on whether chlorine levels hold from 8PM to 8AM. If you lose more than 1 ppm of FC overnight., you probably STILL need to shock. If you do NOT, you can probably move on to just enjoying your pool

[moblaine]

Thanks Ben. That seems like a bit of good news. It's a little after 8 pm so I am going out right not to add 4 gallons of 12.5% liquid chlorine. When I get up in the morning, I will test but how will I know how much FC it held overnight?

[PoolDoc]

I'm posting too late (I assume).

But, you have to add, wait 1 hour, test, then test again in the AM. Try again tomorrow.

However, 4 gallons of 12% should raise your FC by 18 ppm. So, if your chlorine is below 10 ppm in the AM, you still have a problem. Unfortunately the problem could be stale bleach!

[moblaine]

I will try it tonight or tomorrow night. In earlier post you said "If you lose more than 1 ppm of FC overnight., you probably STILL need to shock. If you do NOT, you can probably move on to just enjoying your pool." whereas, in your most recent post, you mentioned the 12% raising FC by 18 ppm and whether chlorine is below 10 ppm in the morning. Am I to be concerned if I lose 1 ppm overnight or 8 ppm overnight? Can you clarify so I'm sure to understand?

If I add the 4 gallons of 12.% tonight, wait one hour and test and the FC is somewhere around 18 ppm, that means the liquid is still good and not stale? Then I test in the morning and if I'm below 10 ppm FC then I have a problem?

We are scheduled for some sunshine over the weekend and into next week after having quite a bit rain lately. Will sunshine possibly help me get rid of some of the chloramines?

[PoolDoc]

Am I to be concerned if I lose 1 ppm overnight or 8 ppm overnight? Can you clarify so I'm sure to understand?

1 ppm. It sounded like you did NOT have an 8PM test, with with to compare the 8AM test, but I was pretty sure if you added chlorine as you said, you would get at least 12 - 15 ppm in the pool . . . and if it dropped 2 - 5 by 8AM, you definitely had a problem.

If I add the 4 gallons of 12.% tonight, wait one hour and test and the FC is somewhere around 18 ppm, that means the liquid is still good and not stale?

Probably. If your pool gallon figure is correct (and mostly, they are not!).

Then I test in the morning and if I'm below 10 ppm FC then I have a problem?

Dose in the evening. Test 1 hour later. Retest in the AM. If the PM test is greater than the AM test by more than 2 ppm or more, you need to keep shocking at night. If the difference is 1 ppm or less, you can stop.

We are scheduled for some sunshine over the weekend and into next week after having quite a bit rain lately. Will sunshine possibly help me get rid of some of the chloramines?

Yes.

[moblaine]

At 7 p.m. tonight, I added 4 gallons of 12.5%. One hour later I tested using the Taylor K-2006 and got FC of 7.5 and CC of 2.0. Was a bit surprised that FC was only 7.5. Will test again around 7 a.m. and see what has changed. Any thoughts about the pool store liquid only bringing me up to 7.5 FC?