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About arobbert

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  1. This post will be helpful. https://www.poolspaforum.com/forum/index.php?/topic/13634-nitros-approach-to-water-maintaince/
  2. I've been using this one:BRS 2 Part Doser - 1.1 mL per minute - from Bulk Reef Supply With this timer for a 200 gal tub. EcoPlus Dual Digital Timer - Bulk Reef Supply.. Works great, maintains 1 to .5 ppm. I add the correct amount of oxidizer for the number of bathers each time I use it. I haven't had to shock once. I keep the chlorine in my basement about 15 ft away. Ran it all winter unless it got below 8 F using 12% strength. Switched to the manual method when temps got near zero.
  3. If that CC level stays high you should run a purge ASAP. It should be 1 or less.
  4. How many gallons is tour tub? That's a lot of MPS. You can probably use the tub now if the levels have come down a bit.
  5. It sounds like you're on the right track. Do yourself a big favor, purge it with Aah-some first. This will help prevent headaches in the upcoming months and provide assurance that it's clean. You will need to test your chlorine one to two times a day initially until you get your process dialed in. You can use a simple OTO chlorine test (saves time) for most of your testing and use the more extensive chlorine test occasionally or if you are having problems. Adjust your AK first following the instructions at the link below: https://www.poolspaforum.com/forum/index.php?/topic/19149
  6. This one https://www.amazon.com/dp/B004BGF7TI/ref=asc_df_B004BGF7TI5337605/?tag=hyprod-20&creative=394997&creativeASIN=B004BGF7TI&linkCode=df0&hvadid=198092864586&hvpos=1o2&hvnetw=g&hvrand=532667794853555589&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9017486&hvtargid=pla-553423955032 Or this one that has more tests http://tftestkits.net/TF-100-Test-Kit-p4.html
  7. You can tell when to refill if you have persistent high levels of combined chloramines. You test for this with a drop test kit (not strips, they are inaccurate). If the number is much above 1 (1.5, 2 or more) you can try shocking to bring it down to 1 or less. It will help if you maintain proper sanitization/oxidation practices. There are chloramines and other disolved solids aka bather waste that can't be oxidized. Eventually they will build to a level that can't be managed by normal sanitation/oxidation processes or shocking. The water will require more chlorine or bromine and will be diffic
  8. You may find the thread below helpful. To insure proper chlorination you will need to test chlorine daily with a drop test kit (not strips). Each situation is different. After you establish your chlorine need you can test less frequently. https://www.poolspaforum.com/forum/index.php?/topic/18706-chlorine-demand/ The problem with the frog system is it uses dichlor that increases your CYA. Over time it will get to high and greatly increase the amount of chlorine needed. The thread below will help explain this interaction. MPS will help reduce this problem but it is not a sanitize
  9. Most people on this site use the dichlor then bleach method outlined here: https://www.poolspaforum.com/forum/index.php?/topic/23090-dichlorbleach-method-in-a-nutshell/ It is now recommended to use Ah-some instead of spa purge. Most people seem to change their water every 3 to 4 months. Since your tub is used I would do an Ahh-some purge ASAP. Here is a link to a great tool for figuring out your chemical doses: https://www.troublefreepool.com/calc.html
  10. If you maintain your water correctly you don't need a product like that (clarifier). It's just a way for stores to sell you more product. In this case it sounds like it created a problem that wasn't there before. By the way, most people don't change their water more than once every 3 to 4 months. Shocking is not needed if you keep your sanitizer at the correct level.
  11. There's no reason you can't use a stand alone stabilizer instead of dichlor. I've thought about doing that myself except that I have a bunch of dichlor. I use an aquarium dosing pump with my tub. It works well.
  12. There is no puck chlorine that doesn't contain stabilizer. This is a shame because it's so easy and affordable. Use bleach/ liquid chlorine (same thing). You just add bleach after use instead of dichlor. Use dichlor initially until you get to about 40 ppm CYA. Then switch to bleach. If you want something automated use a salt system or a liquid chlorine pump. These cost around $150 to $300. I use a pump that maintains a base level. Then add a small amount of bleach after use. If I don't use the tub the pump will maintain an adequate level.
  13. I would add that you want to do this process slowly because sometimes you can over shoot. I experienced this lately. Once you get your levels in the ballpark give it a 12 hour rest and proceed at a slower pace Always aerate (a pain in the winter). If you lower the PH to much and then don't aerate you can end up with lower than desired PH levels.
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