Difference in Water Analysis

[BigDave]

What Ben said.
It's not that I doubt the CuLater works, My belief right now is that it does. We, here at Pool Forum, haven't seen enough positive results to recommend the product without reservation. I think you should try it - but - I don't have confidence enough to tell you that it will work. Like I said "Some people have had luck removing metals with a CuLater packet". perhaps you will have (and report) a positive experience that will bolster our opinion.

[PoolDoc]

It may help to keep in mind that the CuLator can 'work', in the sense of removing soluble metals from water, and still NOT 'work for you' in the sense of solving your pool problems. The first thing (removing soluble metals) is much less complex than the second (solving your pool problem).

That's why I recommended a multi-step process.

[gfritz1]

Thanks for your advice . So today was day 5 of the bucket test and I had a brown stain around the outer diameter of the pool water bucket much like I see on my steps-skimmer and liner. The fill water was clean . I added a little ascorbic acid to the pool water bucket taking care to keep it on the one side and as expected the stain disappeared . I have about 2.4 lbs of ascorbic acid powder on hand , have the skimmer socks and are waiting for the cuLator to arrive . So I do not have any HEDP -I assume need this? Can you make a recommendation ? The reason I ask if needed is that in the one reply you suggested just treating with the ascorbic acid when the stain appears and then brush and with the CuLator in the skimmer should hopefully over the summer remove the metal . No mention of HEDP in that reply so asking clarification.

My cya continues to drop as all I have used over the last year is bleach since having a serious chlorine demand last year . It was 90-95 and on the check the other day was at 45 . At what point to I need to worry about adding stabilizer ?

Water is clear and 86 and with forecast of mid 80 this week in Pa we will be enjoying

Thanks again