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I Apologize for my ignorance but what is this about "borates". How do I test and what is used to adjust? First time I have heard about this. What causes the CYA to get so high, the tablets [trichor-triaz..] or the Power Powder Pro [Cal-hypo-73%]. Thanks again.
Trichlor adds about 6 ppm of CYA for every 10 ppm of chlorine. Cal hypo does NOT add CYA, but does add calcium.
Fill out the form here, and I'll try to work up a plan for you: http://pool9.net/pf-equip-form
You'll need the thread number -- it's 24873
Form done.
I purchased the Clorox Pool and Spa Phosphate remover quart bottle for $17 on amazon. Per chart to remove 250 ppb from 10k pool requires 1/2 the bottle. [$8.50]. Not sure how that compares to the other products. Have been using Phos-free which is about 50-60 bucks per 3 quart jug.
It compares badly.
I got 20 quarts yesterday and was massively disappointed to see the dose ratings. I'd assumed that they were the same as the Kem-Tek product, but they are not. I've got calls in at KIK (makes Kem-Tek and the Clorox brand products) to see what's going on, but haven't heard back yet.
Just entered your pool info, and turned on your signature. I based the gallon calculation on 3.5' water depth, and on the break (transition to deep end) occurring 18' from the shallow end. Add 1200 gallons if it's actually 4' deep water.
Going back over the thread:
1. If you are going to drain and refill, do NOT add borates or phosphate removers until you have refilled.
2. Most likely 16,000 gallons of your water are in the top 3.5 feet. If you drain 3.5' of water, and refill, you'll probably lower your CYA from 130 to about 40 ppm.
Took additional measurements for pool size/gallons.
17 x 38 Grecian rectangular with 2.5 inward radius at each corner
3.5' deep at shallow end wall [SEW]
4.0' @ 8' from SEW
5.0' @ 16' from SEW
6.0' @ 21' from SEW
7.0' @ 25' from SEW
8.5' @ 34' from SEW [basically where drain is at]
Results today Mine vs. Pool Supply House/ Major differences
Date Place FAC TC/CC CH CYA TA PH PHO
7/12 Am PSH 1.0 1.0 260 60 80 7.6 100
7/12 Am Home 2.0 .5 410 115 130 7.5 0
What kits / strips are you using for YOUR testing?
What is the current status of the pink slime spots?
Taylor 2006C test kit.
TDS + 500 per pool supply house. Does this affect the CYA reading in the test tube?
Pink slime has gone away for the most part. May get a small quarter sized spot occasionally.
.
Are you asking, does TDS level affect CYA reading? If so, the answer is no.
How is the pool store testing? Those numbers don't look like computer read numbers, but they are as inaccurate as computer testing.Quote:
Code:FC T/CC CH CYA TA PH PHO
7/12-AM Store 1.0 1.0 260 60 80 7.6 100
7/12-AM Home 2.0 0.5 410 115 130 7.5 0