How accurate are CYA test strips?

[CarlD]

Not very. I tested my water with my PS233 on Sunday--read 30ppm. Today a strip said it could be between 0 and 30....Not much good, is it?

[Rangeball]

Doesn't appear to be

I guess I can guesstimate based on the FC # I hold on average after a full day of sun. So far it seems to be right in line with the 20 ppm I'm guessing from the strip.

[waterbear]

Doesn't appear to be

I guess I can guesstimate based on the FC # I hold on average after a full day of sun. So far it seems to be right in line with the 20 ppm I'm guessing from the strip.

Operative word here is guessing! Ditch the 'guess strips' and get the $15 walmart kit that will test CYA!

[Rangeball]

Would love to, but our Walmart only sells strips

I'm not that worried, I know I have "some" stabilizer, and I'm not totally sold on it's worth anyway. I'll keep my eye out for a CYA drop test.

[Watermom]

I have "some" stabilizer, and I'm not totally sold on it's worth anyway.

If you ever tried to maintain a chlorine reading without stabilizer, you would quickly recognize cya's worth. You can pour bleach in the pool in the morning and it would be gone by afternoon on a hot sunny day. You can't keep it in there without cya.

[Rangeball]

If you ever tried to maintain a chlorine reading without stabilizer, you would quickly recognize cya's worth. You can pour bleach in the pool in the morning and it would be gone by afternoon on a hot sunny day. You can't keep it in there without cya.

I agree.

By "totally sold", more than just enough to keep a residual on a sunny day