Dolphin M4 no longer working.. looking for recommendations for a new robot vacuum


Jul 14, 2015
Monroe, NC
Hey guys,

I had a Dolphin M4 robot for my inground pool (16x32 rectangle) and it just recently stopped working. After doing some testing found that the motor seems to be bad so instead of repair just looking to replace. Looking for recommendations for a new cleaner. I was looking at the Dolphin M600 and Nautilus CC but really open to any suggestions. Thoughts?


Mod Squad
TFP Expert
LifeTime Supporter
Jul 7, 2014
Bedford, TX

In my mind the best robot out there today is the S200 (style).. Cheap and works just as well as the more expensive ones..

They look like this..

Call Margaret and ask her what robot would be best for your pool.. Best deals out there.. You have to call as they are not allowed to do Internet sales.

Margaret Mills
Marina Pool, Spa & Patio
7777 West Jewell Avenue
Lakewood, Colorado 80232


Jim R.