New pool owner (purchased a home that has one). It is a saltwater 26,000 gallon with a vinyl liner. No bottom drain, just two skimmers. It was fine for the first 6 weeks or so but we suspect mustard algae. How do I know for sure? We have been brushing every morning, we’ve shocked it, used algaecide and vacuumed to waste. the water itself looks clear but the deep end is still a little cloudy towards the bottom and it comes back every day. The white steps will have yellowish debri on them.
New pool owner (purchased a home that has one). Algae question
- Thread starter JeanneandTom
- Start date
- Jun 22, 2014
- 47,969
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Welcome to TFP! 
Most often times, the algae you see is actually not MA and some other form. Regardless, the SLAM Process is the way to go. You'll need to have a good test kit, either a TF-100 or Taylor K-2006C as well. If you wish to treat for MA, then you need to pass the SLAM Process 3 criteria first, then increase teh FC to MA level for 24 hours only. Liquid chlorine is the best product during the SLAM. Algaecides are just a waste of time and money. Checkout that SLAM page and the link below. Let us know what questions you might have
www.troublefreepool.com
www.troublefreepool.com
Most often times, the algae you see is actually not MA and some other form. Regardless, the SLAM Process is the way to go. You'll need to have a good test kit, either a TF-100 or Taylor K-2006C as well. If you wish to treat for MA, then you need to pass the SLAM Process 3 criteria first, then increase teh FC to MA level for 24 hours only. Liquid chlorine is the best product during the SLAM. Algaecides are just a waste of time and money. Checkout that SLAM page and the link below. Let us know what questions you might have
Pool Care Basics Archives
Your one-stop shop for all things TFP to include: ABCs of Water Chemistry, Recommended Chemicals/Levels, Test Kits, Troubleshooting, and much more!
www.troublefreepool.com
Mustard Algae
Today We are going to show you how you can get rid of mustard algae in your pool. By following the steps in this guide and with no expensive chemicals.
www.troublefreepool.com
We did use some algaecide and also added chlorine tablets to the skimmers. Pool looks much better today already. The cya was 40 yesterday according to the pool store and I’ve ordered a test kit but it won’t be here for a week or so. Today the free chlorine level is zero! Yesterday it was 3. Should I add some bleach?Welcome to TFP!
Pool Care Basics Archives
Your one-stop shop for all things TFP to include: ABCs of Water Chemistry, Recommended Chemicals/Levels, Test Kits, Troubleshooting, and much more!
Mustard Algae
Today We are going to show you how you can get rid of mustard algae in your pool. By following the steps in this guide and with no expensive chemicals.
Yes, you need to add some bleach. You want to have at least 5PPM of FC. Be careful with the tabs as they can raise your CYA. Your current level is fine, you don't want it any higher. You said you have a saltwater pool. Is your SWG working?
Yes we have it set on 50% right now but we need to add some salt today. Is it true we should drop it down to zero when adding salt? How much bleach should we add?
- Jun 22, 2014
- 47,969
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
If you are low on salt, your SWG may not be producing chlorine. Until you get the proper salt level in the water and confirm the SWG is operating properly, be sure to add liquid chlorine each day as needed to maintain a basic FC of about 5 ppm. I wouldn't use tabs at all right now. Adding liquid chlorine each day won't resolve your issues, but may help keep things from getting worse until your kit arrives.