Yellow Out Swimming Pool Chlorine Shock Enhancing Treatment - 4 lbs.

We used this to get rid of the yellow algae that is so common in Florida pools. It worked pretty well, but you still need to brush the walls and pool bottom several times, and clean the filter before it is completely gone.

I used to get a small container of this from the local hardware store. The price here is much better and it's a much bigger container.If your pool or spa has trouble with algae - turning green or some shade of yellow, this is what you need.Follow the instructions for your particular pool. The main thing is shock your pool first, then use some of this Yellow Gone product. It's not instant, but your pool will be back to clear in a couple days.

Follow directions and it works.

First off, bypass this product and buy United Chemicals Yellow Treat. Not only does it cost less, but you'll use a lot less. Oh and for the record, I wouldn't wish this situation on anyone except my ex.So my story began in the middle of May after the pool had been open for two months, gotta love the south. I visited my local pool store to tell them that my deep end was green (photo #1) and I couldn't see the bottom.....and so the nightmare begins. The associate told me that the water was balanced and all I needed to do was "Shock the heck out of it". That's $300 of awful advice. See picture #2 to see what the result is after shocking the heck out of yellow (mustard) algae.Return to pool store and got my guy. I showed him pictures and he let our a slow breath and said I had mustard algae and that it is resistant to chlorine so shocking it obviously did nothing. Obviously, thanks for that....another couple 100 dollars later and he issues Yellow Out with a set of directions. The nightmare continues. Treated it that night and the next day I see stuff on the bottom and it kind of changed color (picture #3) but still not quite there. I was told to continue brushing the entire pool to the main drain and if my arms and back weren't hurting I needed to brush again.Finally I was seeing progress after a WEEK of brushing (picture #4). The water was clearing and I was feeling good about my success. Not so fast!We of course had to leave town for beach vacay (I know first world problems) and while we were away I slowly watched my pool turn green on the Ring camera. Each day worse and worse. Now I'm crying. Turns out the pump quit on day two and my robot vacuum was just sitting in a mass of green spreading the blossoms through the top fan to the entire pool (Bring back photo #2).Order new pump, week delay, no pump=no circulation. That week sucked.Ordered more Yellow Out and repeated the process after installing the new pump. Got the water clear, broke my back scrubbing and of course the blooms come back in the SAME spot. Now I'm crying, sweating and about to give up. I've watched every YouTube video and read everything I could. What was I doing wrong???????So I noticed that Amazon recommended for you included Yellow Treat and it had a different chemical...what did I have to lose at this point. Oh and I highly recommend if something touched your water throw it away, if you can't throw it away, ie. robot vacuum, bleach the crap out of it. Bleach is different than chlorine FYI.Yellow Treat arrives, only needed three capfuls and super shock. Next day it looked like shock laying at the bottom of the pool, so instead of brushing I went straight hand vacuum to waste. That's right manually vacuuming the pool. UGH! Which means a lot of refilling the pool.Water is clear and more white stuff at the bottom next day. This was repeated through the week with less and less white showing only I wasn't going to come up short this time. Three more capfuls, a touch more shock, manually vacuum and boom, DONE!!! Water is blue and the robot is back in the pool doing its job. I will maintain it with No Mor Problems and continue my regular routine.This situation cost so much money. More than 2 grand if you include the new pump. I just believe Yellow Out wasn't doing it for my situation. For those of you that gave it tons of stars have at it. I'm a Yellow Treat from this day forth, although hoping I'll never need it again.

Followed the instructions on the label and the product got rid of the yellow mustard algae. Definitely recommend for stubborn mustard algae.

After about a month of working with regular shock and furiously brushing the walls I still had no luck removing the yellow staining on the shady walls, could remove it but would always come back. It was like a headache version of a boomerang. Once receiving Yellow Out I took my time and followed the instructions to a T, PH spot on, Chlorine perfect and the used Yellow Out followed by some regular shock, filter on for 24 hours and I have finally fixed my issue.

I bought 2 times truing to remove a yellow scale that was growing on the bottom of our pool. It did not work on removing that.

Received quickly, easy to use. Trying to prepare pool for winter closing but it was pea green and nothing cleared it up. A friend recommended Yellow Out and it cleared overnight. Ordering more to have on hand.