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See attached pictures. I had these for a while, still there after SLAM. I have put a crushed vitamin C on top of one, but stain remained. Ideas? next steps? Greatly appreciate the help of this forum!

Well, after posting, searched the forum.. and it looks like I bought a Robot that many ppl is having issues with… :confused: … a 2020-ish model…

Robot control panel turns on. Robot itself doesn’t move at all under water most of the times I turn it on. Some (fewer) times works fine. I checked the impeller for obstructions, cleaned out some leafs there, tried again and no movement. I turned the robot upside down outside the water, tried...

I have a waterline tile with 1"x2" little tiles. 3 consecutive ones fell off a couple of months ago. I want to repair it; what do I need to use as mud? Is there a mud I can use that will not require me to drain water and wait for it to be dry before application? Thank you. UPDATE: After doing...

I'm still getting zero as CC, FC was 17 last night before going to bed and 14 in the morning around 9 am EDT. 30-40 CYA. No visible algae today.

Woke up to clean water with many spots on dark green algae. Spot of algae gets removed with a brush and the spot keeps floating in the water (does not dissolve). Total chlorine reads zero, free chlorine was also near zero. I started SLAM, but I'm curious about this type of algae. Usually in the...

Definitely fewer bubbles after turning of the SWG and waiting for an hour. Placebo? Science? or Vodoo Magic?? LOL

I do have an SGW. I will do the bucket test in the afternoon. Thnx for the suggestions.

I recently installed a new VS pump. I did my own plumbing, it was in and out, an easy job. I'm losing water, for December in South Florida I don't recall evaporation to be an issue in past seasons. I don't see any evident leaks on the new connections. Nor I see watermarks or any puddles near...

I've set two timers, the main one at 1200 RPM from 9 am to 9 pm (12 hours), and then another one that kicks in the middle of it at noon for 2 hours of 2500 RPM for the suction cleaner. SWCG will turn on at 10 am and go to sleep at 8 pm for a total of 10 hours @ 55% of SWCG, which will produce...

I had a Pentair WhisperFlo 1.5HP. I'll try your suggestions. Thank you.

OK lots of good comments and suggestions (as always); thank you. I'm going to start by figuring out the lowest RPM that would make my SWCG flow switch happy. Then add the suggested 100 RPM buffer. Once that is under control I'll come back and continue the rest of the conversation (max RPM for...

Before changing the pump I was doing two 4 hour cycles, one in the morning starting at 9 am and another in the evening starting a 6 pm, for a total of 8 hours a day of run time. SWCG was set at 90% doing those 8 hours. The cleaner was always in the pool hooked to the skimmer port. I don't have...

In this case, I need to change the question, I want to save the most money while maintaining a healthy pool. I have an SWG to run and also a suction pool cleaner. Can u please help me figure out the intervals and speed I should be running?

I just replaced my old single speed pump with a Hayward TriStar 1.85HP VS pump. I have 1.5" plumbing. How can I calculate the flow rate GPM at XX RPM with this pump and this plumbing size? My goal is to use this information to schedule my different speeds and intervals to move the 13k...

Home depot chlorine stabilizer, 100% cyanuric acid

Will do, thank you!

Yup, it’s been running for 24 hours already. I do notice the filter went up in pressure a bit. I think today’ test are OK, I bought 5 lbs acid and still have 2lbs in the bag. Pool size I’ve been using for years to calcule chemical additions. The only part I guess I cannot corroborate is the...

Scratching my head, usually the math works great. I added 3lbs dry CYA for my 13K gallon pool that measured 40ish CYA to try to take it to SWG recommended level of 70. I also added salt, calcium, acid, recently. Reasons I’m our of wack: dear kids left the water hose Inside pool overnight and...

Bummer, I do have two of those from my previous pool laying around... I connected it and it is doing something...

What about this guy pointing up? https://www.amazon.com/Infusion-V-fitting-Inlet-Return-Venturi/dp/B008DG32FI/ref=psdc_9425947011_t3_B0026MTCOU

I guess this one pointing down might be a better choice? https://www.amazon.com/Kokido-Waterfall-Fountain-Swimming-Pools/dp/B008EKKY72/ref=psdc_9425947011_t1_B005Z1KTBE

Will this works as an aerator if I place it on the steps? https://www.amazon.com/dp/B07L54HB83/ref=cm_sw_em_r_mt_dp_U_MqXTEbTA7JXXK I'm looking for hassle-free solution, need to lower my TA. Thank you!

Thank you for the help. Stains are fading slowy. Need to get another Vitamin C bottle to do a second round of treatment.

Stains seem to change color with the vitamin. Slowly. Rubbing the vitamin doesn’t erase it, rather it’s a slow fade if I crush one on top of it (or the sock). What would be the couse of action, leave the sock on top of it until gone? (There a many little spots) Can this end up in change of...

I think you mean regular Vitamin C, right? (just googled it) Can u please send me a link to which vitamins are you referring to? Then I’ll look for them locally. Thank you!