algae

I seem to have black/brown patches on the side walls. The water itself is crystal clear. I see these patches for some time now and slamming doesn't seem to help. I'm not sure if its black algae or the surface itself is damaged. Attached some pics here of the walls. Any thoughts on how...

I've SLAMMED my own pool in years past and this week I'm trying to help some friends with their pool, since I've had some experience and also I've got a little free time. Please see attached photos. I've read this Turning Your Green Swamp Back into a Sparkling Oasis and I know what I have to do...

Opened the pool to find an extreme case of algae build up. Got the water tested and results recommended adding15 oz. of Soda Ash, wait 24 hrs. then add 4 lbs of Hardness Plus every 4 hours for a total of 28 lbs. After 24 hours from final Hardness Plus application measured the water again. Ph...

Hi all - New on the forum and need some help diagnosing a weird white cloud that is getting kicked up when I brush my pool. Here's the story. I've been using chlorine bleach for the last few years to maintain FC, as opposed to tablets of any sort. In the last month I discovered the...

I have been trying to clear up my 18K gallon above ground vinyl pool since the end of March and I am having no luck at all. We have been getting a lot rain which probably isn’t helping, but I’ve tried “slamming” the pool, try my best to brush, scoop out debris, draining some water and...

Moved from here. I'd like to piggyback here, as I'm about to start a SLAM myself. I'm trying to get rid of 2 tiny spots of black algae (both less than dime size), one small spot of green algae (less than a quarter), and the remnants of mustard algae (this was kind of bad, and I shocked it...

I’m a fairly new pool owner.. bought this house with a pool about 2 years ago and have had nothing but problems with keeping it up. I even had to drain it completely last year and refill. I think one of the main problems is just age.. the house is about 20 years old and I’m thinking the pool...

Hi, I am new to the thread and still reading a few things. I have been a pool owner for 7 years and I am at my wits end with this pool. This algae won't die and the running joke is that it is the undead Algae. I have been told this is algae - it is spotty and seems to be in the crevasses of...

Hi TFP members, I’ve had this pool for 5 years now, it is much older than that, but every year seems there seems to be a new challenge to get the water clear. I switched 2yrs ago to liquid chlorine that I add daily with a couple of chlorinated pucks thrown in to keep the cya up. Last year was...

Hi all, I'm stumped on this one. So this little patch of yellow/brown stain appeared towards the end of last season. Can't brush it off, looks like a stain but thought it might be organic so I SLAMmed. I worked hard to keep FC greater than 30 ppm for a few weeks but the stain remained, and it...

FC 0 pH 8 CYA <30 TA 80 Mucho algae (floating & at the bottom)- doing mustard shock levels after initial SLAM just to be sure! Just used my test kit for the 1st time. I’ve read & made notes on Pool School articles, but want to make sure I’ve got my order correct before dumping chemicals: 1.)...

Hello guys. First post here. This is the second summer that I have had my pool. This summer has been a night mare trying to get the chemicals right. We’ve only swimmed in in once and I’ve had it opened for about 6 weeks. The chlorine will not keep. It hasnt gotten above 1 ppm if that. Most of...

I have been dealing with these hard white/grayish spots on the bottom and walls of my concrete pool. I am in the middle of a SLAM/MUSTARD algae shock as we speak. The reason for this is that I did also have some issues with algae. I recently connected new Intellichlor salt water system and...

My 72 year old (female) Friend had an algae problem caused by a broken pump motor and a lot of leaves. I replaced to broken motor, cleaned to DE Filter, got as many of the leaves out as possible without being able to see the bottom of the pool. I Shocked the pool and ran the pump until my...