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So I have had my pool since Feb 2019 and ordered the Tf100 in May once I discovered this site. I’m about to be out of CYA regent. I have repurchased DPD powder x2 now and with the other kit I had prior had PH and ALK I used first. I noticed on the TF100 there are no dates of expiration. The...

I live in Orlando Fl and the temperature traditionally is always hot. I was able to experiment this summer as this is my first year with a pool and the usage of FC. I was able to use 1 puck per week and the use of liquid chlorine and not have any CYA rise (given the rain and auto drain) which...

So Friday I came home after being away for a little with the parents watching the house and had some algae. I slammed the pool that evening and with 40 CYA kept it at 16 or so for until this evening. The pool cleared up last night actually only after 24 hrs. My pump has been running 24/7. My...

So reading the pool school PDF off amazon and reading this site for better of a half a year I still have trouble understanding the FC and PH testing sced. Normally I test my FC twice to three times a week and PH twice. Usually Tuesday and Saturday. I normally only use liquid bleach however...

I’m heading out of town for 14 days and my parents will be staying at the house. They can place FC and acid in the pool when necessary. I was thinking of placing SLAM level FC (currently FC of 16) the night before we leave with instructions to place the same amount of 238oz every 4th day. I have...

I’m testing my water this morning and doing a full round of tests. I took some photos of my CYA test because I’m stuck on what I should choose. Here are photos at levels 40, 30 and halfway between 30/20 which from my understanding would be rounded down to 20. Thoughts? I’m leaning toward 30.

Tested my water today after some heavy rains here in FL these last two days and my results were FC 0 CC 0 P/H 8 TA 60 CH 200 Temp 92 I added bleach right away to bring to 7. I also added some baking soda because I have been wanting to raise TA to 70 to bring in line. How soon should I...

So I was re-reading the PB docs that I received and I noticed they state to keep for the first year an ALK of 100 and PH of 7.4. I have found it extremely difficult to maintain this PH for any prolonged period of time without decreasing the ALK. I have found an ALK of 50/60 idea for keeping...

I noticed these last few days there is small white sand like deposit around the corners of the pool in a few places. After reading ABC of pool school twice it sounds like it could be scale. However my logs (which can be viewed on my profile) using the app show I haven’t let me PH go above 8...

Did my normal Sunday test yesterday and here were my results: FC 4.8 CC 0 PH 7.8 TA 60/70 range color was hard to tell this time CH 300 CYA 60 Temp 85 So my question is, in the event when I retest today the TA, and it is 60. Should I raise it using baking soda or let it be? If i should raise...

So I did my weekly result for my log this afternoon and here are my results: (This week was not CYA or CH) P/H: 7.6 FC:4.5 CC:0 TA: 70 CYA from last test 60 CH from last test 375 So I usually bring the FC to 8 or 9 first and this will bring the PH up to 8.2/8.3 then I add 2-3 cups of acid...

So this website has been very good to me these last few weeks. I recently built a pool that finished in January. Wanted to drop a photo of the plaster and pool thus far. Im sure I’m crazy OCD but wanted to make it’s nothing more serious. On the sun shelf and floor of the pool there are still...

What would you say this PH level would be? I’m thinking 7.5/7.6 Thank you

So I have been using the the Tf-100 for a little over three weeks now and love it. I recently have been testing my pool water (doing full round of tests every Saturday with PH/Chlorine daily) and noticed my Alkalinity was an 80 this Saturday and my P/H was 7.4. I wanted to lower my PH to 7.2 as...

So I have made the switch to liquid chlorine from tabs and have been monitoring the daily fluctuations in FC using the TF100 with speedstir each day. My CYA is at 60 so I try to keep it at 8 each day. I have noticed it drops to 3 or so each day. My pool store nearby sells 2.5 gallons for 5.70...

So I just got back from leslies as I wait for my TF-100 to come in the mail and these were my results: FAC 3 TAC 3 CH 250 CYA 90 TA 60 PH 7.4 Copper 0 Iron 0 TDS 700 Pho 200 Thoughts on next step? I used the pool math app and it state 4 Lbs of baking soda. You agree?

I was using a sprinkle shock (yes I know I’m never doing that again) and noticed one of the granular fell to the floor and caused this small stain. What can I do to remove this or will this go away over time as brushing has down nothing?

I’m a new pool owner. I just had a pool installed in January. I have a 14,500 sqft pool and have stonescape midnight blue pebble throughout the pool. Last week I noticed the Ph was off 7.8 and needed to be lowered so I put some acid in the pool (little less than half gallon) and make the mistake...