Two Questions: Fiberglass pool repair and chlorine questions

[Watermom]

When you first open it, it looks intimidating but after you do the tests a couple of times, you'll be a pro! Here are some testing demo videos that might help:> http://pool9.net/K2006-vid/

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[moosemudder]

Hello,

Here are my numbers from 8/26 for a 21,000 gallon outdoor uncovered inground fiberglass pool:

1.6 FC
0.6 CC
7.0 PH
60 TA
220 CH
80 CA

I am having issues with using the watergram to see what I need to adjust to get my numbers back to 0 from a -0.9.

Thanks for the help

[moosemudder]

Where is my post?

[BigDave]

The FC is far too low for CA of 80ppm. Minimum of 5ppm - closer to 8ppm would be better. I'd pour in two jugs of 8.25% bleach just to start.
pH is kinda low, bring it up with 20 mule team borax from the laundry aisle. Start b adding one box, let it dissolve and mix, test again, add more as necessary. If you put it in the skimmer, go very slowly, borax can clump up and form a rock hard plug.
Ignore the wheel and the booklet - they are very confusing. You needn't worry about negative saturation index with a fiberglass pool.

Here's a hint: If you use a 10ml sample for the chlorine tests and multiply drop count by 0.5ppm you'll conserve your test reagent. Also: if one scoop of DPD powder turns the sample pink, you don't need another.

[Watermom]

Where is my post?

When new members post, their posts go into a moderation queue to wait until one of us reads and approves it before modding it in. We try and empty the queue multiple times per day so it usually isn't too long before posts appear on the forum.

Welcome to the Pool Forum!

[moosemudder]

sounds great bigdave. i have only added a 1 gallon jug of liquid choriline so far from doing the test. Leslies told me my stablizer was low so I added that at the beginning of the week. I am trying to add stuff slowly to learn how everything is effected.

Is borax better to use than the muratic acid? I have both but have only used the borax to dry out deer skin and clean laundry with.

I question why the kit came with only double of a couple items and after doing my first test at 25ml, I can see how you can go through some taylor products.

I will start with the two suggestions and repost my numbers later.

Thanks for all the help.

[Watermom]

Borax and muriatic acid are not for the same thing. Borax is used to raise pH and muriatic acid is used to lower it.

[moosemudder]

Thanks. We received a lot of rain last month and i was using the acid to lower it. It seems to be an ongoing battle.

[Watermom]

That is the opposite of what rain does to my pool. We typically have acid rain and my pH drops some when it rains.