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I literally can't tell what my CYA is because it looks different in every light. I have complained about it in here before but this time my question is related to slamming: So when testing CYA, the little dot starts to disappear around 60 and in most settings I can still kind of make out the...

Hi guys - Thanks in advance as this forum has been an incredibly valuable resource to me in the past. My pool has been taking ~90+ fl oz LC (12.5%) some days recently as the summer heat gets on it. I've had to SLAM in the past and I'm concerned about the CYA getting so high that it's...

Hey guys - I posted a couple weeks ago here about the difficulty in getting LC where I live and unfortunately using chlorine tabs instead until things get back to normal. I don't want to do it but it's been fine so far until I just ran out of the first barrel of tabs and opened up the second...

Sorry if this is the wrong place for this question. I saw a similar post on here about Calcium Chloride. I want to support my local pool guys, but there's a quarantine in MA and even once they're allowed to open, they don't take credit cards and so going into the (very small) store and...

I've SLAMMED my own pool in years past and this week I'm trying to help some friends with their pool, since I've had some experience and also I've got a little free time. Please see attached photos. I've read this Turning Your Green Swamp Back into a Sparkling Oasis and I know what I have to do...

My pool was reopened two weeks ago while I was away (I got home Friday). In the meantime my wife was just putting a bunch of bleach in the pool and now I gotta try to remember how to do all this stuff! Just took my first measurements. I was down to my last few drops of R-0013 (CYA agent) and I...

Earlier this year I got a bunch (too much, 4 gallons) of muriatic acid to reduce the pH in the pool. I'm a little afraid of the stuff and asked the local pool guy if he could take back 3 of the unopened bottles because I didn't want to bring them in my house for the winter. He said he can't take...

There are ever-so-slight metal stains appearing in the shallow end of my pool. Last year I treated it by pouring a product called The Blue Stuff in the pool and then putting a little sack into the filter trap to collect the metals that TBS put into solution. It seemed to work amazingly well at...

I thought I submitted this post before but it seems to have disappeared. There are actually 3 issues so I'll spread them across 3 posts. I've had a great summer with the pool thanks to you guys, switched to LC from the tabs and until recently had no issues. Lately the TA has started slipping...

I finally got a timer on my pump after 12 years and at the moment I've been running it 8 hours daily with no problems. I'd like to creep it back even further if possible but what should I be looking out for while I start running the pump less? The way I see it there are 2 considerations -...

So far so good this year, thanks to you wonderful people, using LC instead of the tabs I've used for the past ten years. My question is what is the point of shocking if I'm essentially throwing in LC every day? I'm maintaining FC between 7 and 9, as per the corresponding CYA. I would have...

So I tossed in some Sodium Bisulfate that I had left over (just got back from the store with Muriatic Acid which I haven't used yet). I was planning to lower the pH to around 7 and then lower the alkalinity via aeration, as suggested here. After the SB, the pH dropped from 7.8 to 7.4 and at...

I have a Hayward pump that the local pool guy told me to run 24/7. It's a 30,000 gallon pool and sadly, it's not used that often (we don't have kids, but our friends' kids come over sometimes). Is there any reason for that thing to run around the clock? We're in the woods and occasionally...

Thank you all for your help getting me through the SLAM. The pool looks great and I just took some measurements I wanted to post to ask for advice. First of all, it seems to me that the FC dropping from 28 to 7.5 happened faster than it should have if the sun makes it go down 2ppm/day. It passed...

I'm trying to get my head around how one would manage a pool daily with bleach or liquid chlorine. Is it just a matter of checking and adding it when it's needed? What does that amount to, like in gallons/week with a 30,000 gallon pool? And yes, we do live in New England and we drain a lot of...

Finally passed the OCLT and it's all clear! As I mentioned in some earlier posts, the pH and TAC are all out of whack, which you guys (thank you) told me not to worry about while SLAMming. Now that it's going back down, some questions: At what point do I have to start worrying about trying to...

I think my CYA is 60 but honestly I keep looking at it and it's so sensitive that I'm not sure and it may be closer to 70. I know the strips are inaccurate but just for comparison, the CYA on the strips is definitely between 30-50. So having two sources, one I can't really tell and the other I...

I'm on Day 6 of SLAMing and it's getting clearer by the day. However today it seems like the CYA level is going up. Is this normal? It was 60 a few days ago but now it may be creeping up to 80. I keep second-guessing my measurements (because really, not seeing a black dot isn't really an exact...

I learned about SLAMing here because my CC level was high, there was 0 free chlorine and the pool wouldn't hold chlorine no matter how much I added. We opened the pool a couple weeks ago and it was green and you couldn't even see to the bottom in the shallow end. In previous years I had been...

Chris here. Managed to take care of my pool for like 12 years before running into problems that our local pool guy didn't know anything about. I found this place via Google at the end of last season and just now I'm remembering all the stuff I started learning then. I have some current problems...