High chlorine consumption (3 - 3.5 ppm a day)

[newbie2017]

Please pour some thoughts on what adjustments need to be made to get the chlorine consumption to a normal range. Last year only in the peak summer there were few days at 3.5 ppm a day.

Pool was closed (not covered) for 4 months. Opened it a week back, filled it few inches and shocked the pool. CYA was 50 last September.

OCLT passed with 0.5 loss overnight
Water crystal clear.

FC 4 (Bumping to 8)
CC 0
pH 7.6
CH 200
TA 80
CYA 40

Thanks

 

[jmikeb]

have you checked your fc after dosing to make sure your fc is getting where you meant it to?
i just discovered that my chlorine had gone bad

 

[cfherrman]

Since oclt was good it leads to testing error, so do a second oclt just in case, and test after FC adds to check all the boxes. Is something visiting the pool during the day?

Typical steps for can find the use....

Have a floor cleaner? Run it or brush real good.

Check lights and ladders, dead spots.

 

[newbie2017]

have you checked your fc after dosing to make sure your fc is getting where you meant it to?
i just discovered that my chlorine had gone bad

We just bought it last week from Atwoods. Just added a gallon. How long to wait to retest? (30 min enough).

Thanks.

 

[newbie2017]

Since oclt was good it leads to testing error, so do a second oclt just in case, and test after FC adds to check all the boxes. Is something visiting the pool during the day?

Typical steps for can find the use....

Have a floor cleaner? Run it or brush real good.

Check lights and ladders, dead spots.

Since oclt was good it leads to testing error, so do a second oclt just in case, and test after FC adds to check all the boxes. Is something visiting the pool during the day?

Typical steps for can find the use....

Have a floor cleaner? Run it or brush real good.

Check lights and ladders, dead spots.

Will redo the OCLT once the rain stops.

 

[jmikeb]

We just bought it last week from Atwoods. Just added a gallon. How long to wait to retest? (30 min enough).

Thanks.

what is the expiration on the jug? i have 2 1/2 cases of atwood’s online pool shock that are bad

 

[newbie2017]

what is the expiration on the jug? i have 2 1/2 cases of atwood’s online pool shock that are bad

Best by 8/29/2019

 

[jmikeb]

Best by 8/29/2019

that’s your problem. old stuff. that means it was manufactured 8/29/18. mine was a month older than yours. yesterday i went to walmart and found some with late 2018 date. it worked much better

 

[newbie2017]

that’s your problem. old stuff. that means it was manufactured 8/29/18. mine was a month older than yours. yesterday i went to walmart and found some with late 2018 date. it worked much better

and we bought 8 cases

 

[MrBfromNC]

You can test it about 20-30 minutes after you add it if you want to know for sure, but it sounds like jmikeb is probably correct. Old chlorine doesn't help FC levels much at all.

 

[jmikeb]

and we bought 8 cases

just return it. lowe’s home depot and walmart all carry it. check the dates though. most use a date code like 18 256 which means 256th day of 2018

 

[newbie2017]

Tested it 50min after addition (overcast with rainy day). It is only 6.5. Should have been 8 as per my calculation.

Did not save the receipt ..

 

[jmikeb]

Tested it 50min after addition (overcast with rainy day). It is only 6.5. Should have been 8 as per my calculation.

Did not save the receipt ..

bingo.
i’d talk to them and let them know it bad. you might look at their other jugs and trade yours for newer stock

 

[newbie2017]

Thanks everyone for the replies. I will call Atwoods.

On another note, do I need to adjust the CH? It is at 200 right now.

 

[jmikeb]

Thanks everyone for the replies. I will call Atwoods.

On another note, do I need to adjust the CH? It is at 200 right now.

have calculated your csi ?

 

[ajw22]

Thanks everyone for the replies. I will call Atwoods.

On another note, do I need to adjust the CH? It is at 200 right now.

Do you have an autofill? What is the CH of your fill water?

Calculate your CSI using PoolMath

 

[newbie2017]

No autofill. We filled up few inches last week when we opened the pool. I have not measured the CH of fill water.

CSI -0.32

 

[jmikeb]

No autofill. We filled up few inches last week when we opened the pool. I have not measured the CH of fill water.

CSI -0.32

if your water temp is like mine, around 62, your csi will be perfect when you get to the upper 60’s

 

[newbie2017]

if your water temp is like mine, around 62, your csi will be perfect when you get to the upper 60’s

Thanks. Water temp is at 61 now.

 

[gullzway]

Fellow Tulsan. Is the Atwoods bleach 10%? I bought mine from Lowes this year for opening, their 10% LQ is $3.86/gallon.