I was able to determine the stains in my pool are indeed metal...the local pool store gave me a small bag of Ascorbic Acid which I put in a sock and held it against a stain. It worked well - so well that I ended up dumping 2kg of it per the instructions found on TFP. (Sourced it from Amazon) Prior to the treatment, I let FC drop to 1-2 and lowered PH to 7.5. My CYA is quite low (~20) from the winter rains - I'll rebalance pool chemistry once this treatment is complete.
There was a noticeable improvement in the staining, but at least another course will be necessary.
(We purchased the home ~2.5 yrs ago. I have extensive staining in the pool from years of neglect. I believe the source of the stain is from rusting/deteriating galvanized piping in the home (water source) as well as a failed pool heater. The CYA level was in excess of a 1000 but is now under control - I don't think this pool had its water drained for decades.
Here is the question:
My intention was to use a Jack's...but the local store doesn't carry it. Unbeknownst to me, they dropped Jack's line and now use Natures Metalfree product. I needed something quickly (already dumped in the Asorbic Acid), so I picked up a 1L bottle. Per the instructions, I need to add some each week - this stuff is expensive.
http://naturalchemistry.com/residential-products/detail/metalfree/
I know that I need a sequestrant/chleating solution, but adding some each week seems excessive.
1. Should I try to source Jack's prior to treating the stains adding another 2kG of Ascorbic Acid?
2. Will I need to add Jack's every week? Seems expensive.
3. Should I look for a better HEDP? Which Jacks would be best?
4. Will the filter ever remove the chelated metals? (If the stains come back, does that mean my filter cartridge is bad?)
There was a noticeable improvement in the staining, but at least another course will be necessary.
(We purchased the home ~2.5 yrs ago. I have extensive staining in the pool from years of neglect. I believe the source of the stain is from rusting/deteriating galvanized piping in the home (water source) as well as a failed pool heater. The CYA level was in excess of a 1000 but is now under control - I don't think this pool had its water drained for decades.
Here is the question:
My intention was to use a Jack's...but the local store doesn't carry it. Unbeknownst to me, they dropped Jack's line and now use Natures Metalfree product. I needed something quickly (already dumped in the Asorbic Acid), so I picked up a 1L bottle. Per the instructions, I need to add some each week - this stuff is expensive.
http://naturalchemistry.com/residential-products/detail/metalfree/
I know that I need a sequestrant/chleating solution, but adding some each week seems excessive.
1. Should I try to source Jack's prior to treating the stains adding another 2kG of Ascorbic Acid?
2. Will I need to add Jack's every week? Seems expensive.
3. Should I look for a better HEDP? Which Jacks would be best?
4. Will the filter ever remove the chelated metals? (If the stains come back, does that mean my filter cartridge is bad?)