Rainbow Chlorinator repair?

[TonyPH12345]

I have a rainbow 320 chlorinator that, over time, seems to be putting out less and less chlorine.

When the pool was new, it'd digest about 3 or 4 tablets a week at a setting of 2.5 to 3. Now it takes about 3 weeks to digest that much, at a setting of 5, and I wind up having to constantly add Hypo to bring chlorine up.

The pool was built in '99.

Any ideas what the issue could be?

[CarlD]

Sounds like it's clogging up with deposits. Might be time to replace it if it cannot be cleaned-out. I believer the Rainbow 320 was the only chlorinator Ben would recommend. Personally, I prefer floaters. Cheaper and they are easy to replace.

Carl

[TonyPH12345]

Do I have to replace the "Tee" in the main return line, or can I just swap out the unit by removing it from the Tee?