Anyone use both liquid AND tablet chlorine tablets together?

[niceguymr]

I'm curious to know if it is common practice to use BOTH liquid and tablet chlorine together. Also, I'm curious to know how much of each people use on a week to week basis. I realize that it would be different for any given pool based on a variety of things, but I'm still curious on what people are using and how much. I've been 'recommended' to use about 1 jug (2.5 gal / yellow jugs) of liquid chlorine and 2 tablets per week for my pool. I live in South Florida, my pool is about 11k gallons, and it gets a lot of shade. I realize that one cannot make an accurate recommendation without knowing the chemical readings, but since I'm waiting on my test kit to arrive, I can't provide that info right now.

 

[PaulR]

The tablets are probably trichlor. If you have 8-oz tabs, in your pool every two tabs would add about 10ppm FC and 6ppm CYA.

Occasional use of trichlor, e.g. for vacations or when you want to raise CYA a bit, is fine. Habitual use will eventually lead to excessively high CYA levels, and the only practical way to reduce CYA is replacing water. This is a pain in my opinion. Although some people make it work, it's not the way this site recommends managing a pool.
--paulr

 

[anonapersona]

I accidentally left my fill line running and overflowed the pool, twice last month. So, not surprisingly, my CYA lowered. I got 22 on test, so I've been using pucks very slowly to try to get it up a bit, but not too much as I want to get just to 30 no more, before I go on vacation. While I am gone I will run the auto-chlorinator to add 20 pm, plus have the pool sitter add a jug or two of bleach as needed.

edit- But the point is, once I get to CYA 50 I stop adding the pucks. Unless for some reason CYA goes down a lot, like I have to drain the pool down for an expected hurricane or we get a surprise tropical storm that gives 10" of rain or more.