Will cal hypo make pool cloudy and a slight green tint?

moore887

Gold Supporter
Silver Supporter
In The Industry
Aug 14, 2018
311
CAPE CORAL
I added a pound or so of cal hypo to a 10k pool yesterday as chlorine was at 1 and ch was at 270. I got a message today asking what I did as the pool was slightly cloudy and there was a slight green tint in the pool
 

JamesW

TFP Expert
Mar 2, 2011
21,540
Cal-hypo always creates some cloudiness. High CSI increases the cloudiness. The green is likely to be iron.

If there's a cartridge filter, check the cartridge for iron staining.

Check the CSI and look for iron stains anywhere.

In my opinion, cal-hypo is not worth using, ever.
 

moore887

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In The Industry
Aug 14, 2018
311
CAPE CORAL
This LSI was 0.05 before I added chemicals.

FC .5
Ph 8 (1 drop of acid demand to reach 7.8)
TA 110
CYA 40
temp 73F

He filled the spillway (infinity edge pool) a week or so ago. It was low but I don't know if he used the city water or the well water.

I will take a look at the cartridge next week. It's actually a three week old jacuzzi filter but I'm betting it's not a pleatco in there. I think I should be able to pick up some test strips for metal at the pool store, but what to do if it does test positive for metal. Should I just leave it alone. I've never used sequestrants before.
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
21,195
Northern NJ
Pool Size
35000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
Never mix Trichlor and Cal-Hypo.
Never mix Trichlor and Cal-Hypo in the same floater. Use different floaters for each.

I think @moore887 added Cal-Hypo in a different way while there was also a Trichlor floater in the pool.