This quote addresses one of my concerns. I have seen posts describing how to add bleach. When I was using 6% from walmart, I slowly poured it into the skimmer flow. Now that I am using 12%, I would like to know if it is mixing correctly and how long after adding the chlorine is it safe to swim. I only have a skimmer and one return flow. The eyeball flow is pointed down and I can see underwater movement on probably half of the pool.

I would just pour it in front of the return jet. That is how I have added both 6% an 10%. Of course, I have dumped bleach into the skimmer too. Just pour slowly. That's the key.

As 257 said, pour it in front of a running return. I swim 30 minutes after pouring it in (I've actually swam sooner than that, but I don't recommend you do it).

I angle my return eyeball up to where it puts a good ripple on the surface and pour slowly-2 minutes per gallon.

I actually pour in the bleach while in the pool. Just be careful not to pour on yourself. I walk around the pool slowly pouring and mixing with my other hand. This may be crazy but it has worked so far.

We all make our own decisions about what we consider safe to do, and I do a lot of things I'd never recommend anyone else try.

I've been pouring my Bleach directly in front of the returns and I always notice the formation of a milky white cloud in the water, which lasts for a few minutes until the water circulates a bit more. I recently tried pouring the bleach into the skimmer, expecting to see the return shooting out a cloud of white water, but it did not. Could it be that the skimmer method is actually helping to mix in the bleach better than simply pouring it in front of the return? It sure is a lot easier for me to pour it into my return, but wasn't sure of any negative or positive effect by doing this. Is it OK to pour in the skimmer? When I was using the pucks, they were going into the skimmer (although I learned from this forum the downside of that - as when the filter is off, the pucks continue to dissolve creating a concentrated amount of chlorine in the skimmer).

Thoughts?

When you pour in the skimmer, any cloudiness is getting filtered out by the filter before the water comes back into the pool.

The cloudiness is almost certainly calcium clouding and that suggests that some combination of your PH, TA, and CH levels are too high.

Wow, thanks Jason. I really still have so much to learn about pool chemistry!! Didn't realize the cloudiness I see is the result of calcium in the water. Here are my current levels. I actually thought my CH level was too low and was about to go buy some calcium chloride to increase it.

FC - 3 (just added 182 oz jug to reach a target of 7, after this reading)
CC - .5 (usually it's 0 - but it just rained)
pH - 7.5
TA - 90
CH - 180

P.S. This is a brand new plaster pool (less than 2 months old). Could this have something to do with it? I'm not seeing any rise in pH.

cal-hypo always clouds to some degree when adding it to the water, but the cloud doesn't last too long unless there are water chemistry issues.

Just be careful with spash-up...I was pooring bleach into my measuring jug back last month..It was hot,had a little bit spash onto my nose&lip...I didn't think nothing of it,Took my wet hand and thought I had wiped it off..A month later my lip would never get better...Ended up at the skin doctor..She had to do a little work on it ..It is getting better,still not a 100%....After all that I wouldn't change a thing with the bleach...In 11 yrs I believe this has been the best summer of all with the pool....Have had no problem's&water is clear all the time& my number's don't bounce around...

I have poured it in the stream that come out of the spa, which I am sure is 50-60 gpm and I don't pour too slowly just slow enough not to have splash up. I know it is more dense that water but why would you need to pour so slowly?

So it mixes and does not just pool on the floor of the pool.

I guess I'm overly cautious. I walk around the pool and pour pretty evenly into the streams of each of four returns (one return has a small fountain, one has a Pool Skim, and two others are eyeballs) bending down and "floating" the bottle. I usually leave a little to put at the end of pool, with an eyeball close on one side and skimmer close on opposite side, and bottom drain not too far away, just so I can see how fast the cloud disappears. I usually add at night with light on. I can usually tell almost exactly what my pH is by how fast the cloud disappears, from 7.0 to 7.5. (I like to keep it at or a little below 7.2 because I'm working on dissolving calcium scale and lightening copper stain, and keeping iron stain at bay, using a sequestrant and low pH.) At pH of 7.0 the cloud is gone within seconds; at 7.5 probably a minute.

If I miss my every other night addition and have to add more than usual I'll go around the pool twice doing above procedure.

Working on the calcium scale and copper stains I am very wary of letting high chlorine level get too close to any of the surfaces.

gg=alice

Once a week I pour directly into the skimmer with my valve for my Solar Bear heater open because it goes through the filter and right into the panels before going into the pool...I don't know if that makes a difference but I could imagine especially if I have had the heater turned off for a couple of days that water inside the heater could get pretty foul. So especially then I run the bleach more direcly into the panels. Must of the time I pour directly into the torent of current my 2 hp hayward makes...