I'm confused

[Poolsean]

You should not use cal hypo tablets in a tri-chlor tablet feeder. It needs to be vented.
Waterbear, do you agree?

[topless]

3 hours later testing

temp -76
FC - 5
CC- 2
cya - 55
TA -280
CA -0
ph - 7.2

I'm adding 3 more gallons of bleach to bring chlorine back up.

Why is venting needed on tablets? If I can't use the feeder, then I can still crush them and throw in the pool.

[waterbear]

Poolsean,
I agree, all the cal hypo tablets and capsules I have seen are designed for using in the skimmer or some of them can also be used in a NEW floater that has never held trichlor. IMHO, they work best in the skimmer. They should not be used in a trichlor feeder which is pressurized! It is possible for an explosion to occur.

[topless]

So, I should use these by dropping them in the skimmer? How many at a time?

I tried shutting off the pump to let the pool settle overnite and it didn't change it's appearance at all. It did lose virtually all it's chlorine. I had 14ppm FC and 2 CC before, and this morning it's .5 and .5. Nothing else changed. I raised the pool level in the afternoon to the normal level several hours before shutting down and brushed everything. I think I found some additional algae that missed the chlorine shock last week. That's the only thing I can figure that would explain the big loss in FC.

[topless]

I'm finally making some progress with my pool. I can see the bottom in the 4' section and as of this morning my tests showed
temp-77
FC-6.5
CC-1.5
ph-7.5-6
cya -50
TA-300

The TA is my next area I'm going to work on. I will start adding the acid and aerating the pool. I found an interesting setup in my inherited box of pool stuff. It has a fitting that plugs into the Polaris jet and turns 90 degrees and is adjustable height before another 90 and ends with a parallel sprayer head. I checked it, and it is perfect for spraying 20 streams of water into the surface of the pool. I can aim the spray 360 degrees so I can have a fountain or straight into the water with maximum force. I remembered seeing it, but had know idea what to use it for until I saw the pictures in the other thread.

[CarlD]

FC 6.5, CC 1.5, CYA 50?

You need to keep your FC at 15 or it will never clear. I'd worry about that before T/A since it's still cloudy.

[topless]

I haven't dropped the chlorine those last readings were first thing in the morning after putting the FC at 20ppm last night.
I put it back up and kept it all day. Is there a reason I can't do both?
I got some muratic acid and dropped the ph to 7.2 and installed, what turns out to be a rather neat fountain. The TA has come down to 230 just today. While running it looks like this: