Using tablets as a supplement for granular?

[Racker]

Just an update, me and my brother re-did the test again today and found zero CC, so I suppose my original test result was in error, and there is no CC at the moment.

I suppose that means there's no reason to shock right now?

[Watermom]

Probably not tho it wouldn't hurt to shock. Just be sure you keep your chlorine in range per the Best Guess Chlorine chart in my signature. If it dips below the minimum required level, you risk an algae bloom.

[Racker]

Thanks again Watermom. Getting back to the tablet question, my brother voiced concern that the floating tablet dispenser could conceivably get stuck in the corner of the pool and, over time, bleach out the liner. Is there any reason to worry about that?

[Watermom]

It is possible.

[chem geek]

When I first had my pool before I found this forum, I used Trichlor pucks in a floating dispenser and it parked itself by stainless steel bars in my pool. The acidity and high chlorine levels form the pucks rusted the two mounts closest to the feeder and I still live with that rust to this day -- it's a reminder to me of the hazards of using Trichlor pucks near surfaces that are sensitive to acid or high chlorine levels. Vinyl liners are sensitive to acidic conditions in particular while the high chlorine level may bleach out the color.

[Racker]

Interesting. So, it could conceivably be better for the liner to keep the ph on the baser side of the normal range?

[Watermom]

You definitely do have to monitor your pH closely if you are going to use trichlor.