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I have a 400 gallon hot tub. Everything is balanced and it's set up based on the pinned Bromine hot tub post. The bromine tabs (spa frog inline) are out and it's inaccessible until a new part comes in the mail (1-2 weeks). I'm just hoping someone can suggest an amount of chlorine (Swim Shock...

We have no automation. I actually did open it up and thought I might find some damage because there was a chipmunk in there last year. But it was still clean this time. The filter is due for a cleaning, but it does start again when I turn it off and on, so I didn't think it was a flow issue...

Hoping someone has seen this issue before. We have our pump doing 2 cycles/day. Our Master Temp 200 heater has always turned off and on fine along with the pump for a few years now. Within the last couple months it will randomly not automatically start with the pump and will have Service Heater...

Does anyone recognize what the tube dripping water is? Not sure what quality the image will upload in, but my ring finger is directly pointed at the water coming out of a white tube that doesn't have a cover and hasn't dripped in the past. It does not seem to be affected by the jets being on or...

I refilled about 6 weeks ago and have been using the bromine system. I recently added boric acid to appx 40ppm. I switched in brand new filters 2 weeks ago. My pH kept rising which is why I tried the boric acid, and it's actually been stable since. My pH is 7.6, bromine at 2-3ppm, 50...

I appreciate everyone's responses. I actually just went out and bought more bleach as a direct result. Checked Aldi and they had a gallon of Tandil Bleach 6% for like $2.29 which will last me a few months- insane, really. Thanks again!

Funny, I did not realize it was actually just chlorine. Now some other things make sense 😂. Thinking about it more, I wonder if they are Referring to the fact that a lot of bleach nowadays has additives. Of course I’m using one that doesn’t have any. When I go back i’ll have them expand on...

I am seeing all ranges of information googling and searching these forums, and couldn't find a clear and concise answer. My local hot tub store says I should never use bleach because it's bad for my acrylic hot tub. The only reason they can give me is that it's "bad for acrylic" which seems...

That worked exactly as expected. The bromine result (OTO) went to 10ppm+ then dropped back down to ~6ppm within a couple hours. I put my inline bromine cartridge in and will check it daily for the next couple weeks, adding about 3/4 cup 6% bleach each week, or modifying that as necessary. If...

Thank you! That actually helped a few things finally click for me. I added 1+3/4 cup of 6% bleach. For the first shock is that a reasonable amount? (The only suggestion in the initial article is about "3/4 cup per 250-300 gallons" - but I read that to be the weekly maintenance dosage and not...

So this is the first time I'm trying to use the 3-step method in my 390 gallon hot tub. I have the TF-100 test kit. Added brand new water, pH/TA was 7.5/220 which is normal; so I added Sodium Hydrogen Sulfate ~14oz and now my pH/TA is 6.8/110. I am still going to get my pH back to 7.5ish, but...

So we have a hot tub, which I refill every 3-4 months and the initial sample always tells me what the current tap chemistry is. My most recent fill was last week, and the tap pH was 7.6, TA was 220, and CH was 400. I guess I didn't really know what the "acceptable" range is for alkalinity -...

Wow, after all my searching, I never saw that specific article about lowering total alkalinity. Thanks! I am almost always aerating, so I'll just let the pH increase; it was 7.1 last week and 7.2 over the weekend, so it's going...

I am using the PoolMath app, but I can't tell what to do as the recommendations for TA and pH are opposite. For alkalinity, my test kit measured 150ppm, and using the formula (pH=7.3; CYA=80) I get carbonate alkalinity is 126.8. [Should I be using this as my reported alkalinity in the app?]...