staining

  1. B

    Stain Removal Under Skimmerbox

    Hi all, I'm looking for advice on the removal of the dark staining pictured below the skimmer box. Scrubbing has had no effect. Any products or procedures you might recommend?
  2. S

    Advice for pool that remains closed with autocover

    A pool service closed my pool in the fall 2022. I did not open it last summer and it will remain closed until May next year. I have an autocover that remains closed. The pool is in the Washington DC metro area. The water is below the skimmers and the filter plump has not been running. After a...
  3. S

    Pavers and Pool stained

    Our pool builder tried to clean off plaster from our pavers and it looks like they stained them Any advice. I believe they used acid. Also the roofer got debris into our pool and now our pool has green stains on it. We have a Pebble Tech plaster. Any advice would be really appreciated.
  4. T

    Newbie here: Pool water color dark and stains

    Hi guys I am a new pool owner who has been following the threads. I moved into this house couple of months ago. I have couple of questions if someone can help me out. 1) Is my pool water color too dark or is it just the shade coming from the ground that makes it appear too 'dark'. During the...
  5. R

    White stains expanding on gunite pool - Please Help

    Hello, My pool was built back in June, 22 by A&S. It came with the house we purchased. It is a gunite pool. I observed white stains a couple months back, and they are expanding. I have a high Ph problem due, not sure because it is a new pool or just swg. I am really note sure if these...
  6. T

    New Quartz Pool Plaster

    Hi all! Had some questions about my new plaster. The pool was filled last Thursday and they left us a brush to brush the plaster over the weekend. They are doing a 7 day start up, However i guess i brushed too hard? Is that a thing? Because the dirt on the tanning ledge and steps embedded...
  7. A

    Seeking advice for removing stain from coping stone

    About a month ago, we noticed splotchy orange stains on our new pool’s lueder coping stone. The only thing I can think of that could have caused it was my husband often leaving pool cleaning tools (a long aluminum pole, nylon bristle brush, and net w/ plastic hoop) on the stones, and a tool...
  8. MoogMan

    Orange spots (possibly rust?) on fibreglass pool surface

    Hi there. So I have some what I can only assume are rust spots on the fibreglass pool steps (where the robotic vaccum doesn't get to). I brush these daily but had missed a few days. Scrubbing and cleaning do not touch them. I have tried the vitamin c tabs trick (15 in a sock crushed and then...
  9. A

    Something is staining my pool, and I don't know what.

    Something has been staining my tile grout and cover a greenish color over the past few weeks (see photos), and I can't figure out what the issue is. I'm hoping someone here is more knowledgeable than me and may be able to help. My ~6K-gallon pool is technically still under construction in...
  10. Fseminario

    Discoloration on brand new stone scape plaster

    Hello TFP folks, I recently had my pool plastered with NPT's Stone scape. On the first day the pool was filled up I started water treatment. Based on my taylor's test kit results, I started by adding a good amount of muratic acid since the PH was really high. I didn't have any Alkalinity...
  11. T

    Can I power wash water line with water in pool?

    Hi all, I've gotten some great advice from this forum for the last few years. Thanks to all the excellent contributors. I just pulled the cover off my pool. Can I power wash above the water line to clean the staining? I don't want to drain the pool completely. If yes, I also wonder if there is...
  12. D

    Mysterious staining on quartz finish

    Hi there, I'd like some advice on some staining that's occurred recently on an established quartz finished pool. It seems to have been triggered by the addition of pool salt but I can't really say for sure as you can't see the stains in full sunlight and I didn't see the staining straight...
  13. N

    Staining on ledge of vinyl pool liner

    I recently bought a house with a pool (first time pool owner). The edge of the pool seems to have staining that won't come up. I have tried brushing and and scrubbing it. It is only discolored on the ledge (The flat part around the pool where you can stand up no matter the depth). Does anyone...
  14. Bafrye

    Weird staining?

    I was hoping this would go away with some brushing, but it doesn’t seem to be… any thoughts? It’s at the deep end at our floor drain. (We do know that this will be our last season before we need the pool re-finished. (Got a few estimates last year. 🙄 wish we had an inspection on the pool too...
  15. TXMagnolia

    SLAM has plateaued/stains remain

    Our pool was stagnant since the TX ice/snow storm in February due to waiting on new (Polaris) pump. Temps warmed up in March and turned our pool into a swamp. I read up on threads and started my SLAM on April 10. I got water cleared up after a few days but am left with yellow-green splotchy...
  16. MWave36

    Conflicting "experts" and The Mystery Stain

    Hello all, I'm a wanna-be do-it-yourselfer trying to figure out if I should (or even can) de-stain my 1,560 ft3 fiberglass pool or paint it. Here's my dilemma: First, what the heck is this? This pool has been empty...
  17. M

    Help removing stain

    Hi everyone, just opened my pool a few days ago, and I noticed a lot of staining on the floor, sides, and steps of the pool. It was resurfaced with diamond brite last July, and was fine at closing. I scrubbed with a brush, vacuumed, etc and nothing could get the stain out. Just tested the water...
  18. W

    Is this copper staining?

    First, a thank you.....I have been a pool fool for years, blindly doing whatever the local pool store told us to do. I discovered your site last Fall and am a total convert! Just finished our first ever SLAM with $50 worth of liquid chlorine as compared to the $2-300 we usually spent on...
  19. D

    Phosphates & wall staining

    *Sigh* So I’ve had my new fiberglass pool for about a year. A couple months ago I noticed wall staining ( below the water line). After hours of reading and youtubing and determining it was metal staining, I gave it an ascorbic acid treatment about 2 weeks ago, followed by Jacks Magic Blue...