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Yes. Sorry. I just multiple by 5 and move the decimal over. The picture is a zoomed in shot. The algae has a yellow hue to it.

Taylor Kit. I put water to the 10ml, add the powder. Shake and count the reagent until clear. Multiple that number by 5. I had a 5 day slam and pool looked great. Pool still looks great just don't know why these few spots are reappearing.

Brushes away and is clean. It is showing up with a chlorine level of 16 and started to show at 22 ppm. Never used an algaecide and I drained and refilled my pool because I had metal in the water. This spot is new and was not there last year. I have a steel wall with a vermiculite floor...

The original spot that I posted has reappeared twice, along with two new spots since finishing my first SLAM and then raising to mustard levels. I passed an ONCLT for the slam at regular levels as well as mustard - two total (Pool water crystal clear, .05CC and .05 loss over night from 8pm to...

If you are going to SLAM your pool, which you should, go ahead and buy some more reagent because you will run out. I just finished my first slam and I went through two large reagent bottles and a small one. My pool was clean and clear when I first started and I had a five day slam testing 4-5...

Thanks for the advice. I just added my state to my bio. I use a liquid stabilizer so I'll start adding it tonight and monitor it for the next few days. When can I start to use my robot cleaner? Is it safe now?

All, Thank you for your help with my first slam. I used around 35 gallons of 12.5 bleach to get thru a 5 day slam when the pool was clear before starting the slam. I have moved onto raising up to mustard levels (29ppm - CYA of 50 for 24 hours) and I have one last question: I know I...

Why does it appear the white stuff only comes around when the FC drops lower than 15ppm? Just curious. I really haven't seen it at shock levels.

Hello all, I need some help with my update. Let me fill you in. So I started the slam and have been keeping track of all of my tests and additions. I ran out of reagent two days ago and had to essentially give it my best guess for a day and a half until the new reagent came. I pretty much...

I can second this. I originally initially filled my pool last year with well water and the second liquid chlorine was added, it changed to a yellowish color. Unfortunately, you can never get the iron out of the pool so your two options are: spend a load of money on masking the problem and...

0545 down to 20.5 from 24. Didn't pass the night test. I am almost out of reagent os what do I do to hold me over until Wednesday if a local pool store doesn't have refills?

Thanks. My pool water is crystal clear, I just get these spots forming. I want to get ahead of the curve. I just tested my pool at 815 and looks like I added too much chlorine. Good thing is I got lucky and brought it up to 24 with 0 Cc. I'll test around 5 am and see where it goes.

I have and multiple times. Sorry if my responses haven't sounded accepting. I've been listening to what everyone has been saying! This gets process is new to me and I'm trying to read everything I can. And here lies the problem! Thanks for bringing this to my attention. Sorry I was using...

Here is a screen shot of how I got those numbers.....

My calculator is showing with a CYA of 50 a level of 16 is needed and yellow as 29. 20000 gallons saltwater pool. I'd screen shot it but everyone says they come out too small. Am I wrong in my reading? - - - Updated - - - This was done a while ago last year. Currently have CC's of 0

Update: I starting slamming the pool at 1200 hours. I added the liquid chlorine (2.2 gallons) to a shock level of 16 as per the calulator. I tested two hours after (2:00pm) and it was 12.2. I added a little over half a gallon of liquid chlorine (to bring it from 12 to 16) and then tested at...

dihydrate ammonium sulfate

I have held chlorine after the yellow out treatment. After that treatment, my free chlorine was high but my total chlorine was low. Fortunately it did dissipate on its own and I was able to hold the chlorine level after that of 1.5-2.0. Does that sound right? The yellow out needed to be...

I updated my signature and the yellow out appeared to have worked but I plan on just using TFP SLAM method from here on in. Yellow out gave me a TC low and a FC high but that is a conversation for a different day. This place is great! Thanks

These readings are after a "super" chlorinate for 24 hours yesterday starting at 0800 and through the night. The pool is still "balanced" with the exception of chlorine - which is being produced just not staying high enough - I am still learning this process and have read many of the articles...

Thanks, I seemed to have missed the two part when reading that.... Water Test: FC 0 CC 0 PH 7.6 TA 135 CH 325 CYA 50

Sorry, that was in my first of three deleted posts. I plan on slamming. I have 10 gallons of 17.5 bleach ready to go. Calculator says 16 for shock and 29 for mustard. When in doubt, go for the mustard? Also, this is in a "shadier" area but I have other algae in sunny spots.

3rd time trying to post this...Can you tell me if this is regular algae or mustard algae? Pool is clear and balanced but does not hold chlorine generated by my SWG. I opened the pool last week and it was covered with algae. This pictured algae has come back in the same spot and the same has...

I have a Taylor test kit on its way and should be here on Tuesday. I have a party on Wednesday of next week and id like to pool to be clear and open so I'm trying to figure out what if anything I need to do to ensure that. The numbers I received today are close to what I had the day before I...

Pentair IC40. Runs 12 hours day at 70 percent. So if my CYA level is 40. How much do I need? - - - Updated - - - Pentair IC40. Runs 12 hours day at 70 percent