Chlorine/Black Algae

Chlorinating, maintaining the right chlorine levels,
chlorine problems. Dichlor, trichlor, cal hypo, bleach,
granules, chlorine pucks and chlorine sticks.
Post Reply
michael05
I'm new here
I'm new here
Posts: 1
Joined: Sun 27 Jun, 2021 21:31
My Pool: 20,000 gal inground liner with salt water generator

Chlorine/Black Algae

Postby michael05 » Sun 27 Jun, 2021 22:29

Hi everyone
I noticed a bunch of black spots on my vinyl liner so I took a water sample in. All numbers pretty good.
FC 3.14 TC 4.45 ph 7.4 ta 120 ch 135 cya 37 iron 0 copper 0.2 phosphate 153 salt 3081
20,000 gal in ground vinyl liner with swg
They gave me 2 lbs chlor brite to raise chlorine levels wait 24 hrs to add black algae killer. I tested chlorine 4 hrs later and it showed 0 on strips and Taylor kit
Is this normal


Top
Denniswiseman
Pool Industry Leader
Pool Industry Leader
Posts: 2594
Joined: Tue 06 Sep, 2011 05:48
My Pool: 10k inground fibreglass, Telescopic Cover, Hayward Powerline pump, Quality filter with glass media, 27kw output heat pump, K-2006C test kit
Location: United Kingdom

Re: Chlorine/Black Algae

Postby Denniswiseman » Mon 28 Jun, 2021 01:36

You Have combined chlorine and need to Slam (Shock Level and Maintain) with relation to Chlorine / CYA Chart and Recommended Pool Levels
Pool Maths
Use Liquid chlorine (sodium hypochlorite or plain bleach)
Top
Post Reply

Return to “Chlorine”

Who is online at the Pool Help Forum

Users browsing this forum: No registered users and 17 guests