cya level

Last week, my pool test kit (Easytest Pool & Spa test strips) said that I had 0 cyanuric acid. Since then, I have gradually added about 8 pounds of CYA to my 20,000 gallon pool. Why so much? Because when I test the water, it still shows that I have 0 cyanuric acid. The only effect I can see is...

Hey all. New to this world. Looking for some guidance given what I believe to be skewed test results. Please be patient with me. I just received my TF-Pro yesterday evening and started testing right away. I am a new homeowner that came with an older pool and questionable maintenance. A bit...

Greetings, all! First, a little back story. I'm >50 years old and I've never owned a pool... ever. (Well, except for that one that you drag out onto the lawn and fill on a nice Saturday afternoon so that the kids/grandkids can splash around and play for a whopping 30 minutes or so and then...

Hello, I'm new here and in need of help. I notice that the recommendations here differ from all the other online recommendations. I understand that these are from pool owners and their experiences. I'm wondering if someone can help me with a couple of issues. Issue #1 - CYA Back story, we...

I live in Tucson Arizona, in the summer the avg water temp is 84°F and the UV rays are intense. I had to drain my pool recently because I had a cyanuric acid level of 130ppm, as I was only using tabs to chlorinate. I have all fresh water now and my cyanuric acid level is 5ppm. I have Tabs and...

Thanks for the site. It's a wonderful resource. I use Trichlor to bring CYA up to 40-50, then switch to 10% liquid Cl. I am in southern Thailand, and we get mountains of rain between May and November, so I regularly have to switch between the two during this period. Being in Thailand, it cost...

We are getting close to closing our pool for the season and added dry stabilizer to increase our CYA from 30 to 40. We had been running CYA most of the summer at what we thought was 30 CYA per TFT pool test kit. We only use liquid chlorine and do not use pucks or other stabilizer. Gradually...

Ok, I'm sort of lost. A lot of chem talk. A whole lot of good information to absorb. I'm posting some new guy thoughts and a few questions that perhaps should be different threads? I will start a SWG thread regarding one such question. If I am doing something procedurally wrong, please let...

We just opened our ag pool up and it was sparkling clean! From what I can tell, our numbers seem to be alright but the CYA is low. What are some recommendations for raising it to about 50? Our pool is in direct sunlight so the chlorine takes a beating. Should we put the solar cover on it until...

Good morning pool people! I am so thankful I found this site. I wish it had been sooner before I got myself into this pickle! I am hopeful that I will eventually find my way out of this and get to experience the joys and ease of a properly balanced pool, but I think I need help getting there...

Hey all I have a "what if" scenario.. If you are not entirely sure what the cya level is..in my example Im pretty sure I can't see dot at 40ppm cya so I rounded up to 50 cya...I am slamming at 20ppm chlorine. Now say it really is 40ppm cya and I'm calling it at 50..is it safe for my family to...

How long after CYA fully dissolves should I test it’s level? Seems to take a few days..

hi, just got back from vacation for 3 wks. Gf added chems while I was gone. I now see some stuff sticking to some of the sides and on steps/loveseat. I think its somewhere between faint yellow and faint greenish. I had her putting in MA and liquid chlorine while i was gone. Test numbers this...

Hi! I was just poking around the site and I stumbled on This Now I’m going to have nightmares I ruined my brand new liner. 😬 I hired a local pool company to open the pool because it’s my first season with the pool actually up and running. The saga of my pool’s rehabilitation can be found if...

I closed a perfect pool (20,000 gallon, in-ground, vinyl liner) complete with a floater full of chlorine and a winter pill, and I took the cover off to find a swamp. NJ was pretty warm this winter, so that might not have helped, plus my cover is mesh so lets in sunlight. This is my 2nd year as...

New user and first time pool owner here, sorry if this is the wrong place to post! We opened a pool a bit late and the pool was pretty green. I'm assuming FC level to be 0 due to the algae. I bought the tf100 test kit and we tested TA, CYA and pH last night. Vinyl pool, ~32K gallons TA 160...

Hey Guys - Last year, I started with whatever junk the pool store gave me (including the person dumping a LOT of stabilizer into the pool the very first day). It took me a couple weeks to find this site, and although the water has been perfectly clear all last summer, and even over the winter (I...

I have recently started a 3k gal endless pool in my basement. Water was added over 5 days from the municipal water supply. I finished filling it about 5 days ago. I also added about 13 cups of chlorine over the 5 days. My Taylor k-2005 kit was about 15 years old (it's a 2nd hand pool) and...

Hello, Been a lurker for a month! I live in Arizona, and recently bought a house with a pool. The water in the pool seemed ok, but consistently tested high in chlorine and just below "ideal" in pH... after reading here I assumed the CYA was high. After having it tested at a local pool place...

After being near rock-solid stable all summer, my latest CYA readings are increasing dramatically: 8/21: 35 8/22: 35 8/23: 40 8/24: 45 8/25: 45 8/26: 50 8/27: 60 What could be the cause? The only chemical additions I've made during this time are a half-gallon of LC every night as per my usual...

Hey all, found this site as a result of googling the issues I've had a with a new (to me) pool. I have absolutely no idea what I'm doing regarding pool stuff, but I recently read through pool school and am trying to get started on the TFP method. Grateful for any help you guys can give me...

TFP Friends - I think the key question I have here is whether my black dot has disappeared (see picture below)... I have other sub-questions I would love to hear feedback on. If that dot has disappeared, then I'd say my CYA is around 40, which I believe is too low and might explain how much...

New Plaster pool. First season. I use trichloride tabs in a chlorinator. My Cl levels were way high at first. Got a Taylor Test kit and now have that under control. Recently tested the CYA level and was 80. I know it’s in the high level, but Is it that high? Is it possible I got it that high in...