Thanks all.

On the way to work this morning it hit me that the distance from my eye to the CYA tube would be a variable in the black dot visibility.

I was sitting down outside at 5PM in the afternoon sunlight and right on top of the tube, so at waist level the tube will be 24” from my eye. I think that would tend to make the dot disappear sooner assuming my eyesight is as good from 2 feet. If true that would lower the CYA level.

I had this water tested at Leslie’s on Saturday and was told the level was 30 so I added some stabilizer since 30 being the low end got me worried.

So okay, I’m going with bleach. With a 36K gal pool, what’s the dosage? Were do you guys get yours?


Hey waste; no I did not do an alk test yesterday but I plan on it tonight.

My first test showed it to be low, so I added 5 lbs of alk up.

Hey AnnaK – nice to see some reassuring words concerning the CYA test.