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    Water coming out backflush port with mutiport valve set to filter.

    Well I was searching around online and it looks like a spider gasket may correct this issue. Does anyone know the correct p/n for this gasket. I was going to guess pentair 50131000. Thanks Greg
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    Water coming out backflush port with mutiport valve set to filter.

    I have 2003 pentair meteor sand filter. 26" #58930100. Water is pouring out the backflush port all the time. I capped the port and it filters correctly. I suspect air is also getting into the filter through the top when it is shut off. SHould I repair this or just purchase a new filter. I...
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    Dolphin Premier M5 - 4th Season Refurb

    Great write up. I am on season 4 with an M4. Mine is still going a great job. But it is time to replace those foam rings and the original filters. The last week I have noticed a small amount of styrofoam floating on the surface of my pool. I have been going nuts trying to figure out...
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    Dolphin s300i question

    I was looking at a pool supply catalog I get in the mail today and came across this. Doheny's Discovery Powered by Dolphin | Doheny's Pool Supplies Fast I wonder if this is the same thing as the 300.
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    Oasis Z5 Question - Stuck on bottom grates

    It would be interesting to see if the model's with the 3rd center brush get stuck like this. I haven't seen anyone report this problem with the M4/5 yet. The first thing I would do it try and get a refund.
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    is a 12mt robot like the Dolphin 2001 able to clean a 13x6 mt pool?

    I am pretty sure he means meter's. If you look at robot spec's on maytronics website it show recommended for pools up to 12 meters on many models. The cord is 59 feet long. You need to look at where the power supply will be. If it's away from one end you may have a problem. If the power...
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    Dolphin M4 - Doors do not latch well.

    I am also on the second season with an M4. The button only moves at the side furthest away from the center of the cleaner. Moves about 1/4 inch. The button doesn't move at all at the side closest to the center. Mine latches just like it did when new. After reading your post I took a close...
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    Looking to get a robot! Here is a review on the Liberty that talks about removing it from the pool.
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    Bag or Cartridge filter!prettyPhoto/0/ If you watch the video on this page it shows the filter boxes. The 4 cartridges form 2 small boxes about 2 inches thick. The boxes pop out and then you remove the cartridges...
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    Maytronics Dolphin M4 1st season review

    I haven't seen any reviews on this one so I thought I might as well throw out my thoughts on the m4. My dolphin diagnostic lasted 10 full seasons with one repair under warranty(short 5 month seasons in PA). My guess is 700 cycles. approx $1.40 per plus power cost. I could be way off...
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    Buyer beware on bleach 8/15/2014

    I had a relative(mother in law) bring her cleaning stuff to my house . She left a gallon of spashless clorox brand in my basement. Not sure how long it was there , but the plastic jug started to leak from the bottom of the original plastic jug. Whats in the spashless that would make a...
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    Purchased a Dolphin Supreme M5

    That is a great price. Thanks for the link. I recently bought an M4 at a local store and paid almost exactly what you paid for the m5. They have the M4 for almost $300 less than I paid. The No warranty thing is somethig to think about though. Hopefully you will never need it. I wouldn't...
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    Time for a new robot In this thread below, it sounds like the prowler 820 is a dolphin pool cleaner. I just had my dolphin diagnostic die this year also, after 10 full seasons. My power switch keeps turning off. I ended up...
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    Dolphin M5 vs Dolphin Oasis Z5

    I am just currious how long you expect the fine filters to last? I doubt I will ever use the corse filter. I recently bought an m4 that uses the same filter. Just for reference the cloth filter bag on my old dolphin diagniostic worked as good as new for 10 seasons and outlasted the cleaner.
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    Oasis Z5 Question - Stuck on bottom grates

    It would be interesting to see if the m5 with the third brush got stuck the same way.
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    CYA 0 when opening pool.

    Just wanted to say thanks to both the people that replied. I really appreciate the help. Now 2 weeks later. I am very happy I bought a tf-100 test kit last year. After raising the fc to above 10 the cc went to zero after 24 hours. I ordered another supply of the cya test solution and...
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    Maytronics Dolphin Diagnostics replacement parts.

    Went ahead and picked up an Maytronics dolphin m4 today at a store I was near. Didn't want to mail order if I didn't have to , just incase I need service, and odds are sooner or later you will. After 1 cycle on the m4 it does seem to work better than the diagnostic did. Hope it hold up as...
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    Maytronics Dolphin Diagnostics replacement parts.

    Well I replaced the track's, $83 on e-bay. Opened pool yesterday. I was starting to think everything was great. It ran 4 complete cycles after opening the pool and was running as good as new. Then bam, it keeps tripping the on switch like it's an over current problem. Can't get it to...
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    CYA 0 when opening pool.

    Last year when I purchased my test kit I started with a CYA 120. At the end of the season after a partial water change I was at 80. When I opened my pool yesterday I was expecting to see around 60. I am seeing zero. Very surprised. I...
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    Pool Cleaners for Vinyl Liners

    My pool has a vinyl liner. I bought a maytronics dolphin diagnostic cleaner from my pool builder when the pool was installed in 2002. Just for reference were I live the pool season is really only 4 months a year, so please take that into account . I have not noticed any damage to the...
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    Maytronics Dolphin Diagnostics replacement parts.

    Thanks for taking the time to respond. I pulled the side covers off and inspected the tracks and nylon wheels. I don't see any missing teeth on the belts. But the teeth on my belt look very small compared to the ones on your belt. They may be worn down. All the pulleys seem ok. It was...
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    Maytronics Dolphin Diagnostics replacement parts.

    Sorry about that. I believe I need part number 9985050. It's an Dolphin Diagnostic model. Probably going to have to spend 80 or so for the parts. Just looking for a recomended online dealer. Thanks Greg
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    Maytronics Dolphin Diagnostics replacement parts.

    Well I am counting down around 2 months before the pool cover comes off. Late last year my dolphin Diangnostic kept having one timing track pop off and wedge into the cover. Like another recent thread about this cleaner...
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    Bleach prices 2013

    Not sure if this will help anyone on here. Like mentioned above some Namco stores are closing. The one in York PA on RT30 has the 12.5 percent liquid at $40 dollars for 20 1 gallon jugs.
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    CYA 100

    Ok thanks everyone for the replys. I went back and tested TA and it was the same. We have had alot of rain sence opening the pool so that may have lowered it some. I went back and tested the CYA again using 50 percent tap water (city water) in my water sample to simulate a 50 percent water...
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    CYA 100

    Yes a typo on TA, 11 drops = 110. Thanks for the reply. Greg
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    CYA 100

    Hello everyone. First post here. Great and very helpful site. I have spend a few hours reading the recent posts this past week trying to get on track with everything. This will be my 10th season with the in ground pool I have. Everything has been going well with it over the years. But I have...