Question about CYA

[momof3]

Ok.. I will start this tomorrow...

I have another question.. I live near the airport so airplanes fly over my house all day and night.. I am seeing a black ring around the water line on the liner.. Could this be from the airplanes?? The pool's at the pool store also had a ring and when I asked the pool guy why that is what he told me... Is there anything I can do to keep the ring from getting worse and getting the ring that is already there off?? My pool was just put up this wk!!

 

[reebok]

others will be more familiar with that than me, though I often see a mr clean magic eraser recommended for similar stuff.
http://www.mrclean.com/en_US/magic-eraser.do

 

[frustratedpoolmom]

Airplanes? Good lord I've heard it all.

 

[momof3]

Airplanes? Good lord I've heard it all.

HA,, Yes that's what he said... Is this not true??

 

[frustratedpoolmom]

Who knows, but I had a scum line in my pool and airplanes don't fly over my pool.... I think it's normal scum from suntan oils, lotions...air pollution in general... stuff like that.

I just think it's funny the pool store stuff they come up with in order to sound like they know what they are talking about... :lol:

 

[momof3]

Hello, here are my Saturday morning readings... When should I start adding something more than bleach??

FC=2.5

CC=.5

PH=7.2

TA=80

I am adding 51 oz of bleach....

 

[MikeInTN]

I live in the landing pattern for the airport here in Nashville, and I have nada - zilch - nyet- no ring whatsoever around my pool. Whatever's causing it, it ain't the planes.

You might want to bring up your pH just a touch. say to 7.4 or 7.6. 7.2's not danger level, but I like mine in the middle of the scale if I can keep it there. If you do bring it up, just keep an eye on it and see if it drops again. If it does, we'll talk about raising TA then. You use borax to raise pH - check the pool calc and it'll tell you how much.

Other than that, looks good to me!

 

[reebok]

Hello, here are my Saturday morning readings... When should I start adding something more than bleach??

when I was at walmart looking for skimmer socks (which mine doesn't sell apparently I had an overwhelming desire to buy all these products that said it would make your water clear and sparkly and keep algae away and kill bad stuff etc etc etc. I thought gosh, the pool is so nice and I don't do anything except add chlorine, I must need some of this stuff to make sure it stays nice! but alas, the fact is I have to keep buying my chlorine refills and stay away from these wonderful looking products that effectively do the opposite of what they say they will in one way or another.
so even though it would be fun to add different things besides bleach, that's really the #1 thing you need, often the only thing. when you're done with this project, maybe you can add borates, that will give you some new products to throw in the pool

 

[frustratedpoolmom]

Amen. In over 2 years all I have added to my pool is bleach.

 

[momof3]

I just got back from walmart and they didnt have Borax.. .. But they did have baking soda.. so I picked up some baking soda for later and went to Kroger for the Borax... Walmart never has what I am looking for anyway..


I will be adding 72 oz of borax when the kids get out for the evening.. and a more bleach...

I feel like I am adding bleach all day long... I hope it gets less frequently that I have to add this stuff.... My neighbors must think I am nuts...

 

[MikeInTN]

It will. You'll eventually get to where you add it once a day. Keep the faith.

 

[momof3]

Sunday Morning numbers


FC=4

CC=0

PH=7.8

TA=90

CH=100


I added Borax last night and this did bring up my PH but looks like my TA went up since last time I tested it...

My FC looks perfect and this reading is before I added anything this morning.. Should I still add Bleach since I know some will burn off today?? and if so how much because the calculator says not to add any..

 

[reebok]

you wouldn't be wrong to add 1-2ppm. a little insurance just to make sure you don't go below minimum.
borax raises TA, just less so than soda ash and it works faster than aeration. see here: pool-school/pool_water_chemistry

 

[momof3]

This morning my numbers were

FC=7

CC=0

TA=110

CH=120


I just tested my FC and it is at 4 so should I add some now or should I just wait until this evening?? It is noon here...

 

[reebok]

are you still shocking? how does the pool look?

 

[momof3]

I never was shocking the pool.. lol

I am just trying to keep the FC level where it needs to be and it keeps burning off because the CYA is still dissolving..



The pool looks great!!! Maybe a few too many bugs but other than that looks good..

 

[reebok]

oops. well your minimum is 2 and your target is 4. whatever you need to do to stay above minimum. it's no big deal. add it if it needs it. it's not like you can't swim or anything. it's usually recommended to add in the evening when less will be lost to sunlight, but like I say, whatever it takes to stay above minimum.

 

[momof3]

HA! Thats good I was worried that I was supposed to be shocking....


Kids are swimming now so I guess I will just wait until tonight....


Thanks

 

[MikeInTN]

Since you know what your FC was this morning, measure it again this evening and see what the difference is. This should give you a ballpark figure of how much chlorine your pool uses during the day. So, let's just say for an example that you drop down to 2 ppm this evening, so your chlorine demand is 5 ppm for the day; since your target is 4, I'd bring your FC up to 9 in the evening, so the next evening you should be around 3 or 4. If you know you're going to have a heavy bather load the next day, then bring it up a few ppm more, say 11 or so, to compensate for the extra load.

Make sense?

 

[momof3]

Yes it makes sense.. The only thing is my CYA is still dissolving so won't that make a difference in my FC level and where I want to keep it?