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How are you putting the AA in the water? Is the pump off with the water completely still? Whenever I do an AA treatment, I will leave the pump off for a couple hours and then sprinkle the AA powder around the perimeter of the pool to allow it to slowly make its way down the walls onto the floor...

The previous owner used well water. Do you have a different water source to fill up the pool? If not, you are also going to be putting in well water and therefore iron. I have iron from the city water, pumped from a well, and will just use sequestrant whenever I have a big pool party which I...

Man Arrested For Dropping Green Dye In Pools With a Drone Man Arrested For Dropping Green Dye In Pools With a Drone

I forgot to post an update. I put 5 oz of food coloring in a 1 gallon jug of water. I added almost a pound of salt to make sure the dye sank to the floor. I used a funnel attached to a really skinny pvc pipe and slowly circled the edge of the pool while pouring in the red concoction. Did it find...

It is just the very basic type of food coloring and not something a professional cake baker would use. Green food coloring in a pool, that actually sounds like a good prank idea... :devilish:

I am dealing with a very stealthy leak in my liner which I have searched for hours with the snorkel and used up all my red food coloring bottle. As I am now very frustrated, I am now devising a contraption to go around the edge of the pool with a large amount of green in hopes I might be able to...

Cool idea to test. I will have to try it the next time I do an AA treatment to compare side by side with my tap water. I know I have iron so I guess the scientific test will be which turns darker brown. One spring I was doing a full water exchange after AA using the tarp method. I left the...

Here are pictures of my polyfil iron catcher. You can get some PVC attachments to hook up a garden hose to one of your returns and cap the others so there is enough pressure. Here is another thread where I have chimed in and gone into more detail about my process of mitigating (not eliminating)...

Definitely looks like a lot of calcium scale in the deep end. This is where the liner pattern appears to have faded away completely but it is just a white layer of calcium covering up the pattern. Stick to the liquid bleach and stay away from the cal-hypo (bags of "shock"). The calcium scale on...

While the water coming in will have less iron than what is currently in the pool, you will still have some iron. So what is your plan to remove the iron if you are not going to dump in sequestrant? Again, I am never able to rid myself of iron stains but minimize them and over a few months will...

What I also do in my process when the water is still cold (not April-October) is I cap all the returns to the pool and hook up the PVC contraption for all the water from the pump to force its way through the Polyfil. I then take a gallon of bleach and poke a tiny hole in the bottom so it is able...

Yes, I forgot that piece but I don't use much, or sometimes I skip it, because the sequestrant keeps the iron from precipitating to the tiny fibers of the Polyfil. When your fill water has iron, it is just a process of removing incremental amounts each time you go through the AA process. The...

Yes, that is some significant iron in your water. I get iron stains that gradually get more noticeable over time and do AA treatments a few times a year. What has worked the best for me is to immediately do a water exchange after AA treatment as I have pretty cheap water. I normally do this in...

Don't do this. It will just make all the iron precipitate and stain all the surfaces again.

I buy mine off eBay. $27 for 2.2 lbs and free shipping. My pool is about the size of yours and lifting the stains normally takes about 2/3 of the bag. Make sure you get your FC down below 1 before applying and have the pump off for a good 30 minutes so it can freely sink along the edges.

I got the FC and ph in line and measured CYA again at 50. Still a bit higher than I was expecting as my last measurement was probably in December when I thought it was 40 but I could be remembering wrong. The reason I expected lower than 40 is because we got a significant amount of rain...

I did an AA treatment yesterday and went to test my CYA before adding bleach to make sure I wasn't adding too much for stains to return immediately. The CYA reading was around 60 or 70 but I know that cannot be the case because I haven't even added any CYA yet this spring. It should be down...

How long does it take to unscrew the plugs in your pump(s) and filter? It takes me just a few minutes and then a few hours for my sand filter to drain completely. If you are not yet closing for the winter and are worried about a cold snap with temps only below freezing for 5-8 hours overnight...

My idea avoids that part because the CO River doesn't touch California until after Lake Mead. Other states could make a fortune charging CA to deliver water to their doorstep. I am able to do a complete water exchange of 26,000 gallons for approx $150. I could sell you that same water for $400...

Seems like a good time to start talking about a water pipeline from the Mississippi River to Lake Mead. The MS River has approximately 100 trillion gallons per year and diverting only 1% would be enough to fill up Lake Mead to capacity in 3-6 years. You could also have a lot of fresh water to...

I don't think the science experiment took into account TFP pool owners who understand the science of sanitation and are very confident our pool water being able to kill urine very quickly. You think to yourself after 4 beers "should I dry off and go inside? Nah, too much trouble when I know my...

I tell my guests to make sure they pee next to the skimmer....

I found the video of the GIF I shared. This is from a pool in China. I think @Prickly was correct after watching this video... :sick:

The above is the main point for residential pools which normally only have 2-6 people in them at a time. The CYA also keeps some of the FC in reserve for a more consistent effect on sanitation throughout the sunlight hours. If your pool has a bather load like the below gif, then I would probably...

How us this working out for you? I just changed out my poly-fil again with the same brown results, just not as dark as the first time. I'm still getting minor staining on my fiberglass steps but the rest of the pool looks good. My steps are always the first to stain so it doesn't worry me. If...

If you are proactively absorbing iron to prevent stains, put some Poly-fil in the skimmer and change out weekly. If you have just completed an AA treatment due to stains, just a little in the skimmer is not enough to absorb what is needed over a few weeks. If you shove too much in your skimmer...

Metal sequestrants will sequester the iron as the name suggests. BUT these do not remove the iron from the water! Whether you are doing AA treatment or sequestrants to get the brown stains to disappear, these are both temporary and you need to have a plan to remove the iron from the water. This...

Here it is. I am not yet ready to go to the patent office because I would change a few things if I was building it again. I would go shorter and fatter as I used about 7 feet of 2-in PVC pipe and the Poly-fil ends up getting compressed, slowing down the flow rate. I would use at least 3-in pipe...

I was changing out the Poly-fil in my pvc pipe contraption and thought I would share the color of the Poly-fil to show it really does capture the iron. The brown that is constantly on my vinyl liner is very concentrated into the Poly-fil. The one clump which is kind of white was brown like the...

If you are in the market for a new pump because the old single speed is broken or you are doing a new build, a little extra $$ for a VS makes perfect sense. If your single speed is working fine like mine, it will be harder to justify "fixing what isn't broken" when you could spend nothing extra now.