We are in the process of building our first pool (23k gallon, IG, SWCG, gunite) and I have been doing a lot of reading here and on PoolSolutions and I am a little confused about the need to 'shock'. One local pool dealer says that with the SWCG, I shouldn't ever need to shock. Another indicated I would still need to shock. On PoolSolutions it indicates:
What's essential -- for concrete pools:
Chlorine must stay above 0.5 PPM --- always, always, ALWAYS
Chlorine must go above 5.0 every week or so. (Shocking)
.
.
.

But later on that page says:
What's desirable -- for concrete pools
Chlorine should stay above 1.0 PPM
pH should stay between 7.2 and 8.0
.
.
.

So when I read that, am I to assume that if I keep my Chlorine above 1.0 PPM all the time, I shouldn't need to shock unless something else happens (like algea)? Or, should I still plan on bumping up the Chlorine once a week to 5.0? If I do need to bump up the Chlorine every week or so, how long should it stay above 5.0, and can that be done with the SWCG or should I just use bleach?

Thanks so much for any guidance you can provide.