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Last July, I came here for help clearing a cloudy pool. With advice from others here, I lowered CYA from around 270 to normal over the course of three rainy months, chose a new pool robot, and have kept the pool in great shape with only one brief SLAM needed after being away. It is so nice to...

I called back to get confirmation that the T55i and S300i are the same robot with the same full featured remote app, just sold in different regions.

I am not an expert on Dolphins, just a homeowner who made a couple of calls to Maytronics. This is what the two agents told me. The first agent (top of the chart) seemed to be consulting both 2017 and 2018 model year information, while the second gave information on 2018 models only. There are...

Years ago, we had a long period of relative drought followed by recovery with lots of rain. After the rain, a small void opened in the intersection closest to our home. The county repaired it many times as each repair would get swallowed up by the hungry void. Just as I was beginning to have a...

I spent too much time trying to solve this problem, and am posting here what worked in hopes of saving someone else some effort and hassle. One of the two knobs that hold the lid on my Hayward strainer basket kept popping out when I tried to tighten it down to reseal the lid after emptying the...

True, it's not much different, but Maytronics says they haven't sold it in years and cautioned that if anyone has one, it would be aged in storage. Still shopping. I find it frustrating that Doheny's refers me to Maytronics to learn about Doheny's branded Dolphins, but Maytronics can't answer...

Thank you! I am very happy with the results! So much nicer than paying for gobs of water! Oh my! Yes, I have raised CH. I enjoyed showing my 12 year old the exothermic reaction. =) The pool needs it again now. CH 230 CYA 40 (no longer intentionally lowering) TA 100 pH 7.5 FC 7 CC 0

This sounds like a great solution, but I'm not sure I understand where the plastic needs to be and where it should be removed. Does this mean apply to the inside of the male piece continuing onto the outside of the piece, and remove from all recesses within that piece, leaving it on the raised...

I may be there with you eventually, ka8yiu. I was happy to read a CYA test of 55 last night. So much progress in just under three months, and with rain water instead of a huge water bill! I'm hoping I can learn to manage CYA with dichlor and trichlor when I get to that point since I have some of...

Hi, Skenn81. I had to raise CH for the first time in a long while recently too, and I had the same question, plus I wondered how volume differs if you buy pellets or flakes. I bought 94% pure anhydrous CaCl pellets. The first time, I measured half as much as the pool calculator said in a...

Currently you can find 50 pounds for $24 with free shipping and no sales tax to Florida on Amazon (4-8 day delivery, not Prime). It was slightly less from another vendor with a slower ship time. The same brand and size was $30 at Tractor Supply. Home Depot and Lowes sites say they won't ship it...

Just wanted to provide an update for any future readers of this thread. During a central Florida summer, when we get lots and lots of rain, and with directing rain water to the pool beyond what would fall on it naturally, it took a month and a half for the estimated CYA to fall from 270ish to...

We've discovered some additional items that were damaged by the same lightning strike and are now looking at an insurance claim that would presumably replace the Dolphin. I am finding Maytronics' site difficult to use. The comparison table it showed me for three current models showed *identical*...

Just confirming R-0870 can go bad. A new container is testing as it should with the old R-0871.

Thanks, Bama Rambler. There is comfort in knowing someone else has seen this before.

Thanks, thebombadier. I take it you don’t think having the remote would make any difference at all?

I saw that, thanks. I am feeling giddy that I may be on the scale soon! Longing for the 80 to do a SLAM.

I'm starting to think I need to replace R-0870 and/or R-0871. R-0871 is not yellow though, and some say R-0870 never goes bad. The kit has recently been stored in the house, but previously it was stored on a shelf in full shade outside. The reagents are several years old. Texas Splash, normally...

In case anyone is reading this with the same question, after not quite two weeks of rainy season, directing extra rainwater into the pool beyond what falls on it and draining after every decent rain, I am now estimating CYA at 130. I realize most people would not celebrate CYA so high, but this...

The test used to go clear, and the only things I've added are plenty of rain, bleach, borax and backing soda plus that sole pack of MPS. Would rain or MPS introduce something that could cause this? I have just rigged up a manual speed stirrer - group of magnets I can spin next to a test...

I feel sure this question has been answered, but I've searched and read many posts and not found one that quite matches what I'm seeing. My DPD test turns pink then goes to a color I'd call taupe or brown but never clear. I am definitely using the right reagents, and they don't show the color...

The sad, sad result is that on my older power supply, the Dolphin either doesn't start or works for under a minute. I found a suggestion to disconnect the power supply from the Dolphin and the wall for a couple of minutes, leave the robot out of the water upside down, then reconnect and let it...

Thank you! I will try that if my exciting discovery isn't fruitful. I am cleaning out my garage today, and I just found that I kept hidden in a corner my failed dx5. I don't remember what failed about it, but the power supply is still attached to the caddy and I am hoping it still works...

I think I got my Dolphin Deluxe 4 in summer 2012. This past week, a lightning storm took out three expensive items that were 8 days to one month out of warranty (grrr) along with my Dolphin power supply, an item that has far outlived its warranty. (In case it's helpful to others, I used this to...

I long to need to add CYA! I think mine might be around 270. With rainwater diverted to the pool when it rains, I can take out 3+" many days without adding water beyond the rain. I'd love if it were just on the scale by the end of July.

Thanks so much! I pumped 3" out of a full pool yesterday without benefit of a pipe clamp for the drain hose, which was all my grip could take. Today I bought another pipe clamp, and we officially got 1.5" of rain but the pool was full again and I pumped out about 4.5". I don't like to get it...

I live in central Florida. Our average annual rainfall is 52", and we're in the rainy season. I haven't yet used the pool water dilution method to find out how much over 100 my CYA is (updated with estimate by this method, below). I'm kind of afraid to learn. I've just taken over pool chemistry...