So this just happened....

[kdahlgren249]

Looking at a refurbished model on poolpartz Dolphin Nautilus CC. Want to keep costs down and knock out just what I need to get rid of my archaic polaris pressure side. has necessary is adding an 'ultra fine' basket on a nautilus CC?

oh and other question, I'm seeing some review that this model won't go up walls very far, we have the diagonal floors in the deep end with only a small flat spot in the middle of it, and then flat ramp up to a flat shallow end. Would this have trouble getting most of my deep end or does it only struggle with true verticals? May be worth the extra money to get something that climbs walls for waterline to ensure it's getting up all the walls where I see algae growths periodically. Debating if I upgrade to a Triton or Explorer for $750 on there to get it up the walls.

My pool layout basically is this, but the diagonals from the deep end are about 45 degrees to get about halfway up then straight vertical to the ground.

 

[red-beard]

That looks like a renamed version of my Trition PS, without the Power Stream. Without PS, the unit does not climb walls. As far as the bottom, it should be fine.

 

[Mdragger88]

I have a refurbished nautilus cc from poolpartz- it does climb the wall, hover & scrub for a minute & then come back down but not like continuously, it’s quite random whether it chooses to climb. It does not travel horizontally along the waterline.
I have an above ground pool w/a cove so that may influence the way it operates & why it climbs well in my pool.
I have had it for a year & just purchased the fine filter basket- it’s nice but not absolutely necessary depending upon the kind of debris u get. If u get alot of big stuff it will clog quickly so most people use it after most of the stuff has already fallen.
You may get a little discount on it when you add it to your purchase vs buying it separately.

 

[red-beard]

I like the ultra-fine filter because I have disintegrating sandstone surrounding my pool. For an AGP, that is not needed, unless you live in a place with sandstorms.

 

[JoyfulNoise]

Hey look, I found a use for some Dolphin parts -



At least the Dolphin caddy is useful now …

 

[setsailsoon]

that's sad...

 

[ride525]

And the caddy has no O-rings to fail....

 

[ride525]

@JoyfulNoise I know what the robots need. A drying cycle when they are out of the pool.
Sort of like the drying cycle at the car wash, but inside the motor and electronics assembly.... Blow out all the dampness......

 

[JoyfulNoise]

And the caddy has no O-rings to fail....

@JoyfulNoise I know what the robots need. A drying cycle when they are out of the pool.
Sort of like the drying cycle at the car wash, but inside the motor and electronics assembly.... Blow out all the dampness......

Ha. Yeah. This is the reason why they should not be left in the pool - too much risk. If one seal even leaks slightly, the water remains trapped inside the motor assembly and eventually will build up. The little desiccant bags they put in there may seem like such a smart idea but I see them as an admission of design failure - if the motor assembly were properly sealed, you would not need desiccant.

 

[red-beard]

Ha. Yeah. This is the reason why they should not be left in the pool - too much risk. If one seal even leaks slightly, the water remains trapped inside the motor assembly and eventually will build up. The little desiccant bags they put in there may seem like such a smart idea but I see them as an admission of design failure - if the motor assembly were properly sealed, you would not need desiccant.

Why not Pot all the electronics? I know that won't work for motors. But there has to be a way to prevent water ingress at the motor seals. We have motors that operate at the bottom of the ocean. We are talking 8 or 9 feet deep maximum, unlike the oil and gas industries that deal with 5000-6000 feet. Some sort of induction motor? High frequency, low voltage?

 

[Newdude]

We are talking 8 or 9 feet deep maximum, unlike the oil and gas industries that deal with 5000-6000 feet

Their motors cost a bit more than the robot. Heck, their shaft seal costs more than the robot.

 

[JamesW]

They could make them watertight if they did it correctly.

Lots of stuff is watertight with no leaks.

Pool lights mostly don't leak, although they can leak.

My watch is waterproof to 1,000 feet.

 

[ride525]

They could make them watertight if they did it correctly.

Lots of stuff is watertight with no leaks.

Pool lights mostly don't leak, although they can leak.

My watch is waterproof to 1,000 feet.

View attachment 423363

Well, pool lights don't have motors and pumps and tracks.

 

[Newdude]

My watch is waterproof to 1,000 feet

The seconds hand on that watch costs more than the robot.

 

[red-beard]

Maytronics is using commutated DC motors. If they went with 400 HZ motors and low voltage (24 volts), they could use induction motors, which could be dual potted so water will not affect them.

 

[Mdragger88]

Now that u mention it - my $100 fossil watch is waterproof to 5 meters.
I only remove it for surgery- it goes in the pool, shower, & the ocean with me. My last one lasted 15 yrs. The kid who replaced the battery at the fossil store broke the stem by putting the back on upside down or it would still be ticking. I treated it the same way.

 

[Mdragger88]

Maytronics is using commutated DC motors. If they went with 400 HZ motors and low voltage (24 volts), they could use induction motors, which could be dual potted so water will not affect them.

Y’all need to put your brainy brains together & invent the TFP robot!! I smell a kickstarter!! Take my money

 

[Turbo1Ton]

Y’all need to put your brainy brains together & invent the TFP robot!! I smell a kickstarter!! Take my money

I already get in enough trouble with freaking kickstarter. The fidget corner of my desk at work speaks volumes to it.

I'd definitely be in on that one!

--Jeff

 

[JoyfulNoise]

I would use brushless DC motors … cheaper and can generate just as much torque. Your cordless drill uses a brushless motor.

 

[red-beard]

Well, a brushless DC motor really is "pulsed DC", which really is a form of AC with a permanent magnet on the rotor. If the field were potted properly, it could also work. The control circuits for brushless DC would be a bit more complex than a 400 HZ induction motor, if it were single speed.
In any event, the control unit would need to be changed. I would still stick with 24 Volt in either case.