Algaecides, Clarifiers, and Tablets

southernpool1

Active member
May 17, 2016
34
Brandon, MS
#1
After reading some of the threads and reviewing pool school, I now do not trust anything the pool store told me, which is probably a good thing. :D:D

The pool store has told me proper maintenance needs Cal Hypo weekly, along with daily tablets, weekly algaecide, and weekly clarifier. If I maintain FC using bleach by adding daily, am I understanding correctly that I do not need tablets and algaecide?

What about clarifier?

Thanks! The more I learn the less I know...
 

Pool Tool

Well-known member
May 15, 2014
757
Western Chicago Area, IL
#3
I use nothing except for bleach (liquid chlorine) and muriatic acid 95% percent of the time.

CalHypo - raises calcium; only way to eliminate too much calcium is water replacement
Tablets - Trichlor & Dichlor; both raise CYA; only way to eliminate too much CYA is water replacement
Algaecide - Polyquat 60 is used during pool closing in cold climates but seldom recommended otherwise. Some (most) algaecides contain copper, which can lead to staining and turning hair green. Only way to eliminate copper is water replacement
Clarifiers - very seldom if ever recommended as they simply aren't needed in a properly maintained pool with accurate testing and timely dosing.
Bleach (liquid chlorine) - does raise salt levels, but not normally to levels noticeable by us.

The debate is on-going whether the Pool store will tell you these things to raise profits or simply because that's what they have always done. Either way, it is bad logic.
 

southernpool1

Active member
May 17, 2016
34
Brandon, MS
#5
Great! Saves me some money!

Uh oh though. I just bought 100 lbs of Cal Hypo last week...can I use this up before switching to bleach or is the calcium increase too big of a problem?
 

Pool Tool

Well-known member
May 15, 2014
757
Western Chicago Area, IL
#8
You have a vinyl liner, so CH levels are not really a factor for you. It does affect the CSI (see it in poolmath) but that can be managed, although 100# is a lot. I am guessing your pool volume is similar to mine, @ 48% Calhypo that would raise CH almost 200 ppm. Not terrible, but not ideal.

Use PoolMath, effect of adding chemicals, to see the effects. http://www.troublefreepool.com/calc.html
 

tim5055

Mod Squad
TFP Expert
LifeTime Supporter
May 11, 2014
10,087
Franklin, NC
#13
The pool store has told me proper maintenance needs Cal Hypo weekly, along with daily tablets, weekly algaecide, and weekly clarifier.
Well, I think you mis-understood them. All these things are required for the proper maintenance of the owners cash flow and boat payment. It has nothing to do with your pool. :eek: