algae

  1. S

    Small, 10' x 3' pool chemical conversions

    So I have been fairly fastidious on maintaining my water chemistry. However, after some significant rain, I have an algae bloom. My chlorine (by tablet) is high as is my free chlorine. How do I get an algae bloom with high chlorine? What am I doing wrong. Says my ph is low. I thought...
  2. C

    Need help: algae still not removed

    I found my pool had some minor algae problem about 1.5 weeks before. I followed Leslie's guide to try to remove it by applying "Green To Clean", and 3 times of shock followed by the Leslie's Clear Aid. Now the water looks clean. But, after several days finishing the treatment, I found algae...
  3. chyr55

    I’m Tearing My Hair Out

    I have had algae now for the past three weeks. No matter what I do it won’t go away. My levels are all good but still green water. I’m almost ready to just close it for this season. I did talk to my friend at the pool store and his only suggestion was maybe a bad cartridge in the filter but I...
  4. A

    Help Identifying Algae or Pollen

    Hello, First post and came across this site from researching DIY pool care. I just moved into a house a few weeks ago that has a pool and I started noticing this build up on the bottom of the pool. At first I thought it was pollen because there are several tall trees behind the pool, but then I...
  5. M

    Is it time to SLAM?

    Bought a house that came with a neglected above ground pool (no idea how long). We purchased a new sand filter, cleaned out debris, shocked and got it to cloudy blue over the course of about a week. It has now been cloudy for over a month & 1/2 and we can not get it clear. Since the original...
  6. N

    New-ish pool owner. Levels all over the place

    Hey everyone! We bought our new house in March and the first thing I did was fall for the “bring your water to us and we’ll spend your money for you!” pool store gimmick. Surprisingly, they said my water was perfect (it didn’t look perfect) and I didn’t need anything (as a new home owner with...
  7. R

    Pool still green after shock

    I have an above ground pool that is 22’ by 52” with a salt water sand filter. I went out of town for a week and when I can home I seen that my pump tripped out and the pool is green. I threw 3 pounds of Trichlor shock and allowed the filter to run continuously for two days and nothing happened...
  8. jetola

    Algae over night ?

    So i have a question. My pool is an outdoor pool with metal-sides and a rubber bottom. Over many weeks now i have maintained my pool every day. PH is 7,6 and Chlor is between 1,5 and 2. I use the phenol red and dpd1 tablets to Measure - and i measure every day and add chlor every day - to keep i...
  9. jkuper

    Algae Stain on Plaster

    Hi, I'm new to TFP but already this community has saved me a considerable amount of time and money maintaining my pool so thank you for that. I just went through the process of relocating my pool equipment pad and installing all-new equipment on top of that. I also switched from chlorine to a...
  10. S

    ALGAE HELP!!!!

    Our pool is a 15 year old people tech pool. 3 years ago we started battling green algae. Our pool has always been with a paid service but the quit. We got a new service, dumped water (1-1/2 year ago), replaced sand in sand filter, then they quit after throwing a lot of extra money in. New guy...
  11. Y

    Is SLAM Process Complete?

    Hi. I'm new to pool ownership. We bought our house last summer and I kept up maintenance of the pool all summer long according to information I found on this site (thanks alot!). I decided to forgo the pool maintenance over the winter since we weren't using the pool and would just clean it up...
  12. B

    Starting a Pool, Outflow from Filter reduces after 1 hour

    Hi all: I am a pool newbie. Moved into a house over the winter and ignored the pool .. Now I am starting it back up. The pool was green. Pool is in ground, large and with a DE filter. Heres what I did: 1. Brough the TA and PH to range 2. Then I shocked the pool with calcium hypo shock. Once i...
  13. D

    Green Monster: Pool hasn’t been opened in 2 years

    I am getting ready to start the opening process in the upcoming weeks. I want to know if I should start pouring bleach into the pool now to kill off some of the algae now to make it easier for myself later?
  14. R

    Pool SLAM foaming

    Hey everyone! At the end of last year I had other things going on and let the pool get away from me a little bit, then made the horrible decision to just let it sit and fester over the long winter.. fast forward to two weeks ago, I had this nasty green pool you couldn't see half an inch into...
  15. S

    Yellow algae or sand/

    Hello all, new to TFP. haven’t done an OCLT yet (looking to get fas dpd test kit) could anyone confirm (by looks) is this is algae ? I think I’m in denial. There is a backstory including my SWG being out of whack for couple months and pool turning slightly green, I did the stainless steel...
  16. G

    Help from the experts please? Black algae vs replaster?

    First let me preface this by saying that I suck at pool work... I've been trying and last year I did well keeping up with levels. This year is a different story. The electrical conduit that runs out to the pool rotted away - The upper part of the cartridge filter cracked open - Then the lower...
  17. W

    How to get rid of super-fine silt

    Hi! This is my first season with a pool, although I've kept a hot tub for 20 years. I have an in-ground 20x40 pool, vinyl liner, glass media filter, but I mostly use a manual PoolBlaster Max Li for vacuuming. I have both the regular bag (I think they call it a "fine filtration bag") and a...
  18. B

    Pool got out of control!

    We neglected our pool for a few weeks (life got in the way) - and it is dark green, smells bad, and has fuffy stuff on the benches and floating on top. I scared to run the pump or our aqua-bot because I think they are going to get contaminated. We usually use the chlorine generator and add...
  19. K

    Iron AND algae in pool!

    Hello! New pool owner here, Intex 18x48 with a sand filter to be exact. After spending weeks of the dreaded leveling and setting it up we were SO excited to finally get our pool up and running and thought it would be easy sailing going forward. Little did we know, that wouldn’t be the hardest...
  20. P

    Mustard Algae or silt?

    I am needing help. I bought my house in December and in may when i opened my pool there was a whitish brown stuff on the bottom. it appeared to be sand and i believe it was. The stairs were held down with a bag of sand that was leaking sand and plastic. I replaced that. it still seemed to be...
  21. N

    10' Intex pool with algae

    Hello! I have a 10' Easy Set Intex pool that I'm battling algae with. I've tried shocking it with vinyl pool shock, replacing the filter cartridge, using a pool brush to sweep it toward the filter intake...nothing has worked. The worst part: I haven't even had a chance to use it yet since I'm...
  22. D

    Green pool. HELP!!!

    Hello, new to this and I need help! Put 3 gallons of bleach yesterday morning and 4 gallons last night. Vacuumed this morning but it’s still green. Post below are pics of this mornings readings. Help please and TIA.
  23. Nate4429

    Might need to SLAM???

    Ok so still in my first summer as a pool owner and all was great until a couple weeks ago we had a week of rain and I noticed my chlorine levels dropping. I’ve got them back up but then back off to normalize my chlorine input and down goes FC. ? Here are my current numbers as of 5 min ago. I...
  24. N

    Help! Greenest pool in the world!

    To preface my post, my pool wasn't covered over the winter and there are a ton of leaves in the bottom (or at least I think there are, I can't see it). I know, poor maintenance on my part but life happened and it is what it is. We have a 24' round pool about 4' deep throughout with a sand...
  25. J

    Hayward DE Perflex Tube Filter, can I upgrade to different filter?

    So I bought a house with this pool in December and I have been maintaining it ok I think. I have had a couple algae blooms pop up on me if I got busy and forgot to check the pool for a couple days. The filter I have is a Hayward perflex with like 80 individual tubes with filters over each tube...
  26. B

    Black 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...
  27. S

    SLAMming a green swamp, but with complications

    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...
  28. C

    Algae won’t go away!

    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...
  29. B

    White sediment cloud when brushing??

    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...
  30. A

    Green Pool

    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...