CYA "poll"

[Rangeball]

What level do you run your CYA at, and why?

[cajunfla]

well over 100, but not because I want too. Pool builder sold me a chlroine tablet tower during sales pitch. At that time I didn't know better, and still using tablets. I just hate to waste them. Will be draining the pool some this weekend to lower CYA. Moving to SWG hopefully this winter.

[cwstnsko]

I run about 35 PPM CYA. It is enough to keep the chlorine from being burned off too much by the sun, but minimizes the negative side effects. Keeping it low leaves a little headroom in case the SWG fails right when we're going on vacation. The low CYA would allow us to run a tri-chlor floater for a while, if necessary, without driving us to have to do 25 PPM shock treatments.

[xoroniox]

i run 0 cya, because when i tried to run a cya of 30-40 it was too much trouble because every 1-2 weeks i need to add 1-2" of water loss due to evaporation and also because of rain the cya was always low and i was constantly adding cya powder to bring it back up which was costing too much money. so instead i just add 2.5gallons of 10% bleach per week, half on monday other half on thurs or friday and float a 3" tablet 1 per week. this system works well for me.

-Arron

[mbar]

I like to start off with a cya of 30, then I use bleach and pucks during the summer. Starting off with 30 leaves me room to use the pucks for whey I am away and when I need them for stains. I also throw one in when my ph gets high, those pucks sure bring the ph down quick.

[aylad]

I keep mine at 80-90. I live in a HOT climate, my pool is full sun all day, and I have a large swimmer load on a daily basis. If I try to keep mine lower, there's no way to keep up with the chlorine demand without taking a chance on an algae bloom.

Janet

[DavidD]

I like to start out around 30ppm or less as well. This leaves me room to use the inline feeder with pucks supplemented by bleach until I reach 50. I then go straight to bleach.

David

[JerryZ]

I keep mine at 80-90. I live in a HOT climate, my pool is full sun all day, and I have a large swimmer load on a daily basis. If I try to keep mine lower, there's no way to keep up with the chlorine demand without taking a chance on an algae bloom.

Janet

Ditto. I pull a bucket of pool water, set the Cl level with bleach, and test it during the day. On a moderately high UV day (8), I use 3.5ppm Cl at 80ppm CYA. I then calculate what cell output level is needed for various run times to generate that amount of Cl.

[Rangeball]

Thanks for all the responses

I keep mine at 80-90. I live in a HOT climate, my pool is full sun all day, and I have a large swimmer load on a daily basis. If I try to keep mine lower, there's no way to keep up with the chlorine demand without taking a chance on an algae bloom.

Janet

Janet, Please correct me if I'm wrong.

I was under the impression that while stabilizer keeps chlorine in the pool, it prevents some of it from doing it's job and therefore more is needed to do the same sanitizing job as lower amounts in a low/no stabilizer pool.

For example, imagine after a party, 3 busboys (FC) start cleaning up. 2 drunken women wander back in (stabilizer) and grab two of the busboys and start dancing. There's still 3 busboys in the room, but only one is doing an work. Manager (pool owner) quickly sends 2 more busboys in to do the work, now there's 5 busboys in the room, but only the 3 are doing any work, the same as was getting done without the drunks.

If this is how it works, why is CYA even needed at all?

In the past before finding this forum, I like others ran a sky high CYA because the pool store wanted it that way. Now I know why...

I used bleach about 1/2 of last season, and closed it with bleach. This spring my CYA is low, about 20ish, and I'm maintaining FC between 3-5 ppm, and so far so good.

[rhosk]

I like to start off with a cya of 30, then I use bleach and pucks during the summer. Starting off with 30 leaves me room to use the pucks for whey I am away and when I need them for stains.

I like to start out around 30ppm or less as well. This leaves me room to use the inline feeder with pucks supplemented by bleach until I reach 50. I then go straight to bleach.

This is my regimen exactly