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Smarter people will be by, but IMO: Your CYA level is high and your FC level is low for the amount of CYA you have. Without algae, you should be maintaining at 7-10 for FC with CYA of 85. Take a look at the chart in the pool school section for the recommended chlorine/CYA levels. For now, you...

Someone smarter than me will be along soon, but I'm wondering if it could be copper.

It is ok. You can do this. Follow the steps in the Sticky and your pool should be back to sparkling clean in no time.

Jason, I think that we do have a sump pump, so I'll suggest that to my husband as well.

Waste, my husband's reaction to the crack was to apply an epoxy. I am really worried about the possibility of an explosion, so if it comes down to it, I'd prefer to deal with an algae-filled pool rather than take that risk. The filter is running at a pressure of around 25 psi. We just...

I don't think I have a recirculate option, but I'll have my husband check. With any luck, our pool store will have the parts we need in their warehouse and we'll be able to get this fixed before too much damage has been done to the water clarity.

We developed a crack in our filter casing and will need to order a new one. In the meantime, since we can't run our pump, does anyone have suggestions on how to keep the pool from turning into a swamp? Should I just pour in bleach and brush to mix? Should I keep it at a shock level or a...

I just wanted to add that if you are in the middle of an algae bloom, that can register a inaccurately high CYA level. I tested CYA when I had a green swamp on my hands (and thought a partial drain was on my to do list) only to learn later that our pool's CYA level was really a lot lower than I...

Your CYA reading could be artificially high due to the algae clouding your sample. After your water clears, do another CYA test to get a more accurate reading.

That was really fast. Congratulations. You may want to retest your CYA now that you pool is clean. I spent weeks thinking my pool was at 70 while fighting algae only to have the number read more like 30-40 after the water cleared.

You can dilute your sample to test to higher chlorine levels. For instance, if you want to test up to 15 ppm, you would add one part pool water and two parts distilled water, mix and then test. It isn't the most accurate way to test, and I recommend getting the TFP kit from Dave, but it will...

My husband and I became pool owners about two months after you. It was fine for the first year, but we let it go over this winter. We started out with just about as dirty a pool you can imagine at the end of May. Our pool was quite cloudy until last weekend when it finally started to break...

If your pool is still cloudy, your CYA level might not really be that high. I have recently went through an algae killing spree that took a few weeks. During this time, while the pool was still cloudy, I tested the CYA. I also took a sample to the pool store. We both came up with a CYA level...

I wonder how much of the fading is due to chlorine and how much is due to the sun. I know that I've had the backs of sofas fade when exposed to the sun, without ever coming into contact with bleach at all.

I find that the sun burns off quite a bit of chlorine during the day, so I wouldn't be too surprised if the chlorine is at a more acceptable level by late afternoon and we can all enjoy the pool in relative comfort. At some point, I'll give careful consideration to raising CYA, maybe even to the...

You can call me Jen. :) So, we can swim with FC of 20 or above? Or do we let the FC drop a bit?

This morning: FC: 22 CC: 1. I'm getting really frustrated that I can't seem to get rid of the CC. My husband wants to use the pool this weekend, the water is clear, but the CC is hovering at .5 to 1 for the last few days.

I regret that I didn't take any photos. I have to get a new battery for my digital camera. Perhaps I'll get that done this weekend so you can at least get my after pic. Suffice it to say, that at this point, I can make out just about every grain of sand that my vacuum missed in the 8 foot...

Thanks. We have an attached spill-over spa to our pool, so I think we can aerate with that, right? I've never seen a floating fountain. The water looks wonderful, but I'm still getting CC readings. This morning, my FC was at 19.5 and CC was 1. My husband bought a bunch of bleach, but it...

I started another thread about CYA, but since I'm getting closer to finishing this algae war, I decided to run a full set of numbers this afternoon with my new kit. FC 14.5 CC .5 pH 7.2 TA 150 (or 143 if you use CYA correction) CH 350. CYA between 30 and 40. The CYA level came as a shock...

I just got the Taylor kit this week. Are you testing a 10 ml or 25 ml sample? With the 25 ml sample, you are counting in .2 ppm increments for each drop vs. .5 with the smaller sample. This still doesn't account for your numbers if you think your FC is in the 5-7 ppm range, but it would...

Water clarity was even better this morning. We can see the deep end pretty clearly at this point. It isn't perfect clarity, but it is close. Lots and lots of sand left in the pool. I haven't had a chance to vacuum it like I wanted to last night. I will try tonight. FC - 20 CC - 1 I'm...

My husband had been getting impatient and was threatening to add Floc a couple of days ago. I begged him not to do it. I told him that the bleach would do the trick. I knew when I came home and saw him outside in the backyard staring at the water that we must have had dramatic improvement...

Dramatic improvement in water clarity over the course of the day! I can clearly see the bottom of the shallow end and I can fuzzily see the bottom of the deep end. The FC dropped to 16.5 and the CC is 1. So I am continuing to shock the pool. I'm going to bring it back up to 25 tonight and...

Ok. That is a relief. I was somewhat troubled because I had vacuumed it all up twice and it keeps settling on the seat and bottom of the spa. Perhaps I'm kicking up a lot of sand when I vacuum and that is what is settling.

We purchased this home nearly two years ago. We had a pool service for the first year. It didn't keep the pool perfect, but it was decent. My husband decided to cancel the service, but didn't do anything with the pool. We were in a silent battle over who would take care of it. Summer got...

The FC held to 25 last night, but I still have a CC of 1. I'm going to add 2 ppm, to account for sun loss and see how it goes today. Clarity continues to improve, the spa is perfectly clear, the shallow end is almost perfectly clear and I can see the bottom, the deep end still needs a lot of...

Taylor kit arrived yesterday. Yay! I got some odd numbers on CH and TA. I'm going to retest them tonight accounting for high chlorine numbers and I'll will post those results tonight. Last night FC was at 19 and CC were 2. This morning, FC was 21 and CC was 1.5. I added enough chlorine...

The chlorine held overnight, the pool is still cloudy but slowly improving. Do I allow the chlorine to go down to maintenance levels? Or do I keep it at shock level until the pool clears? Also, there is lots of fine sand in my spa. I think it came back in after I vacuumed it up. I am going...

I hope so. I vacuumed again today because there was a lot of sand in the spa. I got a lot of sand up, but when the spa refilled, the water was cloudy again. I'm guessing when the water settles it will be clearer. We switched up the filter after vacuuming. The chlorine levels fell during the...