New Plaster Start Up Bi-Carb - Last Leg

[Kouri]

Today: pH 8.2, TA 260, CH 200. Adding 10 oz MA.
Pool store: copper 0, iron <1 (yesterday they had TA at 325).

Put in new filter (Porpoise brand), jets perked up and skimmer better. Brushing 2x a day, filter back on schedule. Thoughts?

 

[bdavis466]

Looks good

 

[Kouri]

pH 7.9, TA 260, CH 150. No chemicals added today.

Watching chlorine (.6, FC 0) and CH; if no changes will adjust. Yesterday after new filter saw some cloudiness but gone this morning. Phew.

 

[bdavis466]

At this point you have no CYA in the water so as long as there is some measurable chlorine, you are fine.

 

[Kouri]

Excellent - thanks.

 

[Kouri]

pH 8.2, TA 280, CH 200. Adding 1 c. MA

 

[bdavis466]

How did the TA go up? Did you add baking soda?

 

[Kouri]

No. Added no chemicals yesterday. No baking soda added since start-up.

 

[Kouri]

Re-Tested pH 8.0 TA 280. At 260 color changed to pinkish but did not become red until 280.

 

[Kouri]

pH 8.1, TA 280 (changes color at 260 & 270, red at 280), CH 200

Adding scant cup of MA.

 

[pooldv]

When drop testing go to the last drop that does not result in any further change and don't count that last drop. So, your TA is likely 280 or possibly 290.

 

[Kouri]

When drop testing go to the last drop that does not result in any further change and don't count that last drop. So, your TA is likely 280 or possibly 290.

I've been counting the last drop in all cases so I've been recording higher than actual numbers (instruction in kit doesn't state this detail); TA is 270. I'm seeing little change day to day and adding small amounts of MA. Is the TA a problem?

Today:
pH 8.2, TA 270, CH 175 (not counting last drop). Adding MA per PoolMath with pH goal 7.9 10 oz; make no changes unless pH is 8+.

Thanks for the help.
Susan

 

[Kouri]

I'm in week 2.5 and thought it time for a quick update. The pH is running 8.0 - 8.2 and I calculate MA required in PoolMath with the goal set at 7.8; ~10 oz daily. Still brushing 2x a day, CH steady and TA slowly coming down. The water is crystal clear and I (who never tended a pool before this project) can "feel" the smoothness of the surface when brushing -- a bit different than the first days of brushing.

The PB stopped in to fix a minor issue and commented on how good the pool looked. The woman that maintains the pool for us was also very impressed and commented on the smooth finish. While they never said so, I suspect they were concerned that the technique might not work so it was rewarding to hear the positive feed back.

I will continue until everything is in balance before returning north for summer.

Susan

 

[needsajet]

That's great news. Well done on the startup! How long before you head north?

 

[Kouri]

Thanks! We plan to be here through end of April.