Dolphin Nautilus leaving black marks

KJB1

Well-known member
Jan 8, 2021
55
Temecula, CA
Pool Size
12500
Surface
Plaster
Chlorine
Liquid Chlorine
Recently got a Dolphin Nautilus and is doing a great job with cleaning but in a few spots where it gets extreme angles climbing steps or in a corner I can see where the black corner bumpers are leaving marks on our white plaster. Anyone had this issue? They don’t come off easily with a brush. Any hints on removal or prevention? I love not having to lug out the hoses and running the pump to use the suction cleaner.
 

cowboycasey

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LifeTime Supporter
TFP Guide
Jul 3, 2013
7,801
Southern OK
Pool Size
15000
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
CircuPool SJ-40
I wonder if there is something you could put over the bumper to stop it??? Do you have a video or pictures of what is happening :)
 

vbertone

Silver Supporter
Dec 20, 2015
164
Arnold md.
Pool Size
25000
Surface
Plaster
Chlorine
Liquid Chlorine
I have the same problem, I just use one of those pumice or pumice like scrubbers and it comes off. But your right it’s not easy.
 
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KJB1

Well-known member
Jan 8, 2021
55
Temecula, CA
Pool Size
12500
Surface
Plaster
Chlorine
Liquid Chlorine
Photos of the black marks. Looks kind of like a kid with crayon in these pictures. It’s not bad but is annoying for sure. It shows up better in person. I like stuff to be as perfect as possible for as long as possible. I notice that pine needle floating 😠
 

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cowboycasey

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Jul 3, 2013
7,801
Southern OK
Pool Size
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Surface
Vinyl
Chlorine
Salt Water Generator
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CircuPool SJ-40
It does look like crayon marks... I am still trying to think of something that would stop it and nothing comes to mind... I will keep at it :)
 

Oly

Gold Supporter
Jun 28, 2017
2,125
Fresno, CA
Pool Size
27000
I cant visualize this bumper you describe. Looking at pics of this model the plastic shroud is black, is that marking your plaster?
 

KJB1

Well-known member
Jan 8, 2021
55
Temecula, CA
Pool Size
12500
Surface
Plaster
Chlorine
Liquid Chlorine
The bottom corners have those black rubber bumpers.
 

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Oly

Gold Supporter
Jun 28, 2017
2,125
Fresno, CA
Pool Size
27000
Call Maytronics tell them you need replacements in white. If they are not available develop them yourself and sell them as an aftermarket upgrade for 4X cost.
 
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KJB1

Well-known member
Jan 8, 2021
55
Temecula, CA
Pool Size
12500
Surface
Plaster
Chlorine
Liquid Chlorine
They are all black. Even different models, no other color options . I may try to just take them off or maybe first I’ll just put some clear gorilla tape over them and see how much abuse they actually get.
 
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cowboycasey

Gold Supporter
LifeTime Supporter
TFP Guide
Jul 3, 2013
7,801
Southern OK
Pool Size
15000
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
CircuPool SJ-40
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KJB1

Well-known member
Jan 8, 2021
55
Temecula, CA
Pool Size
12500
Surface
Plaster
Chlorine
Liquid Chlorine
I did a easy test while it was out of the pool. I scraped the sides of the bot, the plastic as well as the rubber against concrete. Both came off really easy. I don’t know why scrubbing with a brush won’t remove it from the white plaster. Neither the plastic nor rubber really left a scuff Mark like black shoes in a gym on the concrete like I’m getting on the plaster. Very odd indeed.
 

KJB1

Well-known member
Jan 8, 2021
55
Temecula, CA
Pool Size
12500
Surface
Plaster
Chlorine
Liquid Chlorine
I found the Dolphin thunder is white but looks like same design for other counties. Tried to order the side panels from Marina pool. I hope they are available and can make them fit.
 

KJB1

Well-known member
Jan 8, 2021
55
Temecula, CA
Pool Size
12500
Surface
Plaster
Chlorine
Liquid Chlorine
I found they are pretty easy to remove with a scotchbrite pad. Not something you would want to do weekly but if your wife asking to clean them off like mine was.... I’m waiting on white replacement plastics from Marina pool still.
 

KJB1

Well-known member
Jan 8, 2021
55
Temecula, CA
Pool Size
12500
Surface
Plaster
Chlorine
Liquid Chlorine
Did some pretty extensive testing. It isn’t actually the black rubber but the plastic itself. I used tape then the white marine epoxy to make like a bumper. Used for a month or so with the epoxy and no marks. Outside the USA Maytronics sells them it other colors. Ordered the 2 lower trim pieces for one of those to retrofit. Had to trim the rubber on one side to keep it from getting stuck all the time. I guess that’s why from the factory they only have the rubber bumpers on one side. All seems good now.
 

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