Has anyone had to deal with this? I've attempted 3 times to kill it unsuccessfully. Any thoughts, ideas, suggestions of taking care of this problem? It's getting pretty frustrating, This is the first and only thing I cannot handle taking care of my pool.
T H A N K S .....
Thankfully I have not had any algae problems in the past few seasons. If I remember correctly there is a specific algaecide for mustard.
Thank you Blazer, I know of 2 different. One I have tried 3 times. The other one LOL I actually have on order. It is so strong that I just watched BOSCH on Amazon Prime and one episode the company who makes this in Lancaster California is so bad that they have to make it with 12 Illegal aliens they pick up at a HD, then they Blindfold them and bring them to an abandoned Factory to make it by hand. When I saw the name on the Boxes in the factory, al I could say is " No sht " ... Googled it up and sure enough. Now I'm hesitate to use it when it comes in. The name in the Series was " UNITED CHEMICAL Company ".
Never did get rid of it. Tried various chemicals and spent a lot of money dumping it in the pool. It beat me.
520 L TDY
You need to reach breakpoint chlorination which is like 30ppm and use a product like yellow out in combo with the chlorine. The salt water system alone isnt going to be able to generate that much chlorine. Is this a plastered pool, liner or fiberglass. Plaster gonna be more difficult to get rid of it.
2022 Caymas CX 19 / Mercury 225 Pro XS
Shock is your friend.
You have to use the algaecide with Bromide in it. Do not listen to the directions, dump the entire thing in there. The day before you do it pour three times the amount of shock into. Before you do all of this backwash your filter good. Because you’re going to want to have it clean before. When you throw the shock in go ahead and throw any toys or tools in the water as well and just let them sink. This method worked for me in south Mississippi where it isn’t any hotter.
Two things: 1. shock the pool with a chlorine product to a level of 30ppm and maintain that level for a minimum of 4 hours. or 2. use a high concentrate copper algaecide according to the directions on the bottle. Brush the pool. Leave pump running throughout the process. When algae falls to bottom of pool vacuum residue to waste as the filter (sand filters especially) will not catch the dead algae. May have to do the chlorine shock again if algae persists. Mustard algae are chlorine resistant so you must maintain a high concentration to kill it. It is tough but brushing the whole pool will help keep it down. Don't add chlorine and copper together as this will cause staining of the pool surface. Use one or the other.
2013 X19 F200LB Yamaha
And get rid of phosphates, they help algae grow. The pool store will sell you some expensive shit but cheap muriatic acid will do the same thing. Be careful with it and of course dilute it before you pour it in you pool.
If professionals who's careers depend on catching fish use FFS then that's what I'm using. Might be too simple of a philosophy but makes sense to me.
Shock, adjusting pH with baking soda or muratic acid, and brushing works for me. I run a remote vac and clean it out every hour or so to get the dead algae out. I've been told the chlorinator doesn't work well with water below 60 degrees. Have your water checked to see whats out of balance. Its a pain in the spring, but once the water is balanced everything cleans up easily the rest of the year.
Originally Posted by Michael333
It is a LINER.
Is it mandatory to use ALL NEW Brushes and Net and extension pole to continue cleaning the pool. Also, Do I have to REPLACE all the sand in the filter ? Curious if the Mustard Algae sticks to all pool equipment and surrounding areas of the pool.
I always took my water down to Leslie's and have it tested. Mustard algae, I believe, is what I had and couldn't get rid of. Pool tech said that your best bet is to drain the 20,000 gal pool. He advises everyone to drain pool every 10 years and we've had it for almost 20 years. I drained it, scrubbed everything down, replaced water, and it was gone. The pool seemed to be less chemicals used when I drained it and refilled. Had it for 5 more years until we moved. Yes, you are right. Pool ownership sux!
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I replace the brush annually, and had the sand replaced this year because its been at least 8 seasons. Our pool is old and lots of replacement parts were needed, salt water system, pump, ladder, heater seals…its been fairly easy to maintain. I hired all the big work. Next up is a liner replacement. Its about ten years old and faded.
Did you also replace the sand ?
No need to drain your pool or new brushes and equipment. Algae takes water or has to be wet to grow. Keep that stuff dry and could even wash in bleach but do not need to replace it.
Our pool is over 25 years old on the second liner and we switched to salt about 6 years ago, it has Never Been Fully Drained (well I guess with the liner replacement) and only lowered below the skimmers every year for winterization. I still have an original brush to this day.
I do change the sand/media about every 3 to 5 years, it's cheap and use way way less chemicals so money saved in the long run. I also changed the salt generator this season, it started building up those white calcium deposits way too fast so it was time. Good luck and
Probably much more knowledgeable people on the forums below even though BBC Members are experts on everything!
https://www.troublefreepool.com/goog...gae&gsc.page=1
http://www.poolforum.com/pf2/
Last edited by LateralLine; 04-25-2025 at 09:47 AM.
If professionals who's careers depend on catching fish use FFS then that's what I'm using. Might be too simple of a philosophy but makes sense to me.
We did not have a sand filter. Originally, it was DE filter. When that filter went faulty, I switched to cartridge filter.
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