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Thanks, I will check that. At this time it is at the local retailer where I bought it. They gave me their S400 demo unit to use until they can troubleshoot my 300i. Heck, they can keep it all summer since I have their 400!

I have a 20 year old concrete pool that was originally finished with marcite. After 15 years the marcite was becoming rough and thin in spots. I had the marcite removed and the pool re-coated with hydrazzo. Recently I noticed a small spot in the bottom of the shallow end (about the diameter...

I have a 5 year old Dolphin S300i, which I love, and has worked very well until recently. It basically stopped moving. It will turn on and move and inch or two forward and then backward and then simply stop. I did the out of water test (positioning the cleaner upside down out of the pool) and...

Just to do a wrap up on my original post, hoping it may be of help to other members. Bottomline: The 220V/30A GFI breaker was bad. It was intermittently tripping at first and then a hard failure. Fortunately, my hot tub service guy could replace it, so I did not need to call an electrician...

Thank you for replying Jim. Wow, I would have never guessed that heat from the circ pump could keep the water that warm and yes I do believe that I have a good cover. I am on the same path as you about checking the voltage out of the breaker, but unfortunately I am away from my home. My...

About 2 weeks ago I began having problems with my Hot Springs spa and it was not heating up totally. I was out of town, called service, they found the 2 pole 220v 30a GFI breaker had tripped, reset it and all seemed fine. Couple days later it happened again and after a week the breaker will...

Sorry for the late reply. I have had no problems with the S300i or M500 getting stuck on drains, but my drains are not raised.

Last spring I finally decided to invest in a quality robotic vacuum. Based on TFP reviews I zeroed in on Maytronics Dolphin. So, to begin this is a report rather than a problem, and I hope that it may be helpful to others. I knew that a quality robot would not be cheap, but I was more...

Great, thanks for the reply. Since refilling the pool after the new hydrazzo I seem to have ever increasing Ph, more than in previous years. So, I add acid to lower it. The reason I mention this is that I read high TA can cause Ph to increase. Is this true? I have also read that the new...

This spring we had our gunite pool re-plastered with hydrazzo. Upon completion, about three weeks ago, we immediately had the pool filled with water by delivery truck. I use the TF-100 test kit and have everything in balance except the TA is high at about 190-200. It started at 240, so it has...

jmikeb, when you said "stays there for awhile" can you quantify? I thought that I waited 5-10 minutes (but, I didn't actually time it) and I finally pulled it away manually by the cord.

More information. I called the Maytronics US customer service to ask my question, as the dealer recommended. The individual really had no answer, but I found this next part interesting. They said that the S Series would handle that situation and the S Series was their best selling line. I...

Hello Dolphin M Series users/experts! I am planning to buy a M500 and my local dealer has demo units. I picked up a M400 demo unit (they sold their M500 demo) yesterday and ran it through two 2.5 hour cycles. Indeed it does a great job of vacuuming, but I have a couple of questions. First...

Several days ago our pool contractor completed refinishing our pool with hydrazzo. Our gunite pool was built 16 years ago and it was time to replace the marcite finish. I had the pool filled with delivery truck water and it looked a little greenish at first, but within 24 hours it was very...

Hey, I just figured out how to add the photo after clicking on your photo and saw that it said avatar!

Dave and Chuck: I have never used a sequestrant to hold it in suspension. Is this a DIY process that I can handle? Is there a specific product? Our pool is currently drained. After 17 years the marcite needed to be replaced and I chose hydrazzo as the replacement. In about 2-3 weeks the...

Thanks for the replies so far. Since I am referring to summer top-off due to evaporation or splash out, so it usually isn't a huge amount of water. The hose runs from my pool house equipment room/bathroom, which is soft water. That should eliminate some, but not all. I then make sure that...

I want to purchase a pool pre-filter that will connect to my garden hose for topping off the pool water during the summer. We are on well water, which is quite hard with a lot of iron (rust color). I googled the topic and found a product called Pleatco Pure Start, but the feedback was not...

Moved to filters forum.....Sorry if this is the wrong forum, but couldn't find anything real specific. I want to purchase a pool pre-filter that will connect to my garden hose for topping off the pool water during the summer. We are on well water, which is quite hard with a lot of iron (rust...

I am also looking at the Maytronics robots, with some of the same questions and coming up with similar answers. Yes, it does appear that Maytronics robots are similar to mattresses in that the manufacturer puts different labels, colors etc. on the product to prevent comparison shopping for...

I plan to purchase a new robotic pool vacuum and I am looking for some recommendations for my 18x36 in ground gunite pool. I have looked through the TFP archives, but wanted to ensure that I am getting current 2018 recommendations (Dolphin M500 comes up quite often). Of course, I have used...

Well, it has be just about one month since converting my pool to the Pool Pilot DIG220 and RC-42. Now that I have about one month experience, I can give my impressions: I already stated in my original post that I did the entire conversion myself. I am not an electrician or plumber, but have...

Thanks for your comment YippeeSkippy. I know that my CYA is high and that I need to dump water to lower it. I plan to do that at the end of this swim season when we winterize. I use the CYA-chlorine chart to set my FC goal with the higher than desired CYA. Next summer, with a lower CYA, I...

I finally converted to a SWG pool yesterday. We had our pool built about 12 years ago and we have always used the New Water Cycler paks and Frog Mineral pak as recommended by the pool builder. For those unfamiliar with the New Water paks, they are filled with tri-chlor tablets and for our...

Yes, I would like to have the SWG control the pump. Currently, my pump run 24x7, which I think is overkill, but it is the way the builder set it up. My pump is a single speed. Do I need the relay board in the pool pilot to have it control the pump? What about the propane heater? Neal - - -...

I am 99% sure that I am going to convert to salt water this year. I have researched on TFP and SWG internet searches, so I believe that I understand the pros and cons. The biggest reason for converting, after 12 years of using tri-chlor tablets, is ease of maintenance. We are sometimes away...

I am planning to convert my pool to salt water this summer. I was talking to a pool maintenance person recently and he recommended a product called "pepper", which is supposed to eliminate some of the corrosive negatives of salt water (if I understood him correctly). Anyone out there...

I have 3 Sta-Rite Max-E-Glas pumps on my pool and one has gone bad. The bad pump was my main circulation pump (the other two are for jets in a seating area and a fountain). Since all 3 pumps are the same I switched out the bad one so I have main pump circulation again. So, now I have to...

Thanks. I don't know if you read my previous posts in this thread, but I indeed know that I need to drain off some water to lower my cya. In fact, it is likely a substantial amount of water per the calculator. I am planning to wait until September (end of swimming season in Michigan) to do a...

This morning I have passed the 3 criteria shock test. I also brushed the entire pool and cleaned the filter during the process. Due to my high cya level (110) I needed a high FC count. At what FC ppm will it now be safe to let the grandkids, or me for that matter, to swim?