is "shock" any different from reg chlorine

jcraig63

Member
Jun 23, 2017
13
Canonsburg, PA
Recently my girlfriend had purchased a 50 lb bucket of cal-hypo at 68%. for $135.00.

She also purchased a box of shock (same Brand name) cal hypo 78 % of 12, 1 lb. bags. (12 lbs.) for roughly $60.00.

Am i incorrect in thinking the "shock" is way overpriced or is there something i am missing besides the 10% increase in cl?

i was considering returning the shock.

i normally use liquid cl but currently none is available.

any suggestions?
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
41,501
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
"Shock" is a horribly mis-used term.
In both instances, you have cal hypo. One, the bag form, is in purer form. Adds more chlorine versus calcium. The other is less pure.
If you use the entire 50 lb bucket of cal hypo in your pool, it will raise your CH by 150 ppm. Be aware of that.

The bag stuff is a bit more expensive. More packaging and a purer form. And, of course, it is 'Shock', so that means it is more expensive!
 

jcraig63

Member
Jun 23, 2017
13
Canonsburg, PA
"Shock" is a horribly mis-used term.
In both instances, you have cal hypo. One, the bag form, is in purer form. Adds more chlorine versus calcium. The other is less pure.
If you use the entire 50 lb bucket of cal hypo in your pool, it will raise your CH by 150 ppm. Be aware of that.

The bag stuff is a bit more expensive. More packaging and a purer form. And, of course, it is 'Shock', so that means it is more expensive!
i get that and hate all of the misleading names and descriptions. i guess the real question I'm asking is there a real difference other than the percentage?

the cost is well over double so unless the "shock" bags dissolve or have something else in them i can't justify the expense.

am i being too picky or cheap?

i thought if the bucket works the same i probably don't need it and can spend the 60 bucks on the chemicals i really need.
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
41,501
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
The bagged is simply purer form. Less calcium added for the equivalent chlorine rise in your pool volume.
 

zea3

Mod Squad
TFP Expert
LifeTime Supporter
Jul 10, 2009
13,802
Houston, Texas
If the bucket is granules and not tablets then I would stick with the bucket and return the bags. The upcharge for the bagged shock is to pay for the convenience of having it measured in 1 lb increments.
 
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