Don't do anything yet! For one thing, you still have to get some HEDP! To quote an earlier thread:
(You didn't find a recommendation for that product here, did you? If you did, I need to fix it !)EZ Clor Metal Magnet -- an EXTREMELY diluted solution of HEDP. Specific gravity 1.01 - 1.02!! Unless the MSDS I have is a misprint, this is basically a bottle of water.
1. Stain removal takes place at FC=0 ! That's why you need polyquat, so you pool doesn't turn green with algae, giving you two problems for the price of one!
2. Don't do either, yet. Actually, since Magnet is mostly useless, you can do whatever you want with it!
Here what you need to do:
1. Order a K2006. To do the stain process, and prevent future stains, you've got to test accurately. (Links below)
2. Fill out the Pool Chart (link below)
3. Get a chlorine tablet; put a piece on the suspected organic stains; remove after 1 hour. Observe the results.
4. Get some Iron Out; put 1/2 cup in a old sock; place it against one of the areas that responds to Vitamin C; see if it outperforms Vitamin C.
5. Think about where the stains came from -- if you keep adding metals, you'll keep getting stains. (Utility water, well water, rusty pool pipes, deteriorating heater?)
Lemme know the results.
Ben
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+ Get a cheap OTO (yellow drops) / phenol test kit, or if available at YOUR Walmart (check availability), get the HTH 6-way DROPS test kit, which is compatible with the Taylor K2006. Test the pool as soon and you can, and post the results. If you get the 6-way kit, ALSO test the water you FILL the pool with, especially if it's a well, and post THOSE results as well. (The HTH is the best available kit you're likely to find locally, but it's not the K-2006. It can only provide rough measurements chlorine levels above 5 ppm, and it measures "TOTAL" hardness, rather than "CALCIUM" hardness, which is not ideal.)
+ Having a good test kit makes pool care easier for EVERYONE. A good test kit means a kit that can test chlorine from 0 - 25 ppm, pH, alkalinity, calcium hardness, and stabilizer with reasonable accuracy. Test strips (AKA 'guess-strips' ) do NOT meet this standard. Some pool store testing is accurate; most is not. The ONLY way you'll know whether your pool store is accurate or bogus, is by testing accurately your own self. On the other hand, pool store 'computer' dosing recommendations are NEVER trustworthy -- ignore them. They are designed to sell more chemicals than you need, and WILL cause many pool problems.
+ We recommend the Taylor K-2006 test kit, which meets the requirements above, for many reasons. The HTH 6-way drops kit is a great starter kit, and is compatible with the K2006 (it's made by Taylor). There are a few alternatives; for example Lamotte makes an FAS-DPD kit that's OK -- but it costs 3x as much. But, we're not aware of any test that is better, and since we are all familiar with the K-2006 (and can help you with it) we recommend it exclusively ( Test kit info page )
+ It's much easier to answer your questions, when we have the details about your pool in one place. We often 'waste' the first few posts back and forth collecting information. So, please complete our new Pool Chart form -- it takes about 30 seconds, but will save much more than that.Pool Chart Entry Form
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