Barracuda Blues

[Bcorig]

I have an 8 months old Barracuda G3 which has functioned fine until about 2 weeks ago when it stopped operating at startup.
Side wall suction was set at 50% Suction 50% skimmer the variable speed Jandy Pool pump, which was installed 3 months ago, starts at 3000 RPM every morning. There is a Zodiac leaf canister in the line
Until two weeks ago the G3 would start up and run for the 4 hours cleaning cycle. It covered most of the pool bed.
Now, when the pump starts up it just sits there.
I can get it going by 1. Disconnecting and re-connecting the hose 2. Striking or jostling the hose. 3. Setting the wall suction to 80% which then sends it up the side of the pool for the entire cycle rendering it useless.
I disassembled the unit, there are no obstructions and the diaphragm is intact. I believe I have the proper hose length for my pool.
Through trial and error I discovered the unit will not run at less than 2250 RPM.
I’ve used G3s for over 25 years and never encountered issues such as this.

 

[Mdragger88]

Is the flow keeper valve thing working correctly?
Perhaps air is getting in the line somewhere /leaky hose? Suction side leak in your plumbing that causes an air bubble upon startup?
Mine was too finicky- I abandoned it for a robot.

 

[Gyre]

I have an 8 months old Barracuda G3 which has functioned fine until about 2 weeks ago when it stopped operating at startup.
Side wall suction was set at 50% Suction 50% skimmer the variable speed Jandy Pool pump, which was installed 3 months ago, starts at 3000 RPM every morning. There is a Zodiac leaf canister in the line
Until two weeks ago the G3 would start up and run for the 4 hours cleaning cycle. It covered most of the pool bed.
Now, when the pump starts up it just sits there.
I can get it going by 1. Disconnecting and re-connecting the hose 2. Striking or jostling the hose. 3. Setting the wall suction to 80% which then sends it up the side of the pool for the entire cycle rendering it useless.
I disassembled the unit, there are no obstructions and the diaphragm is intact. I believe I have the proper hose length for my pool.
Through trial and error I discovered the unit will not run at less than 2250 RPM.
I’ve used G3s for over 25 years and never encountered issues such as this.

I'm thinking maybe a fine leak in the hose or a wonky diaphragm. Do you have a spare diaphragm you can try? Does the suction at the cleaner end seem normal?

 

[Bcorig]

I'm thinking maybe a fine leak in the hose or a wonky diaphragm. Do you have a spare diaphragm you can try? Does the suction at the cleaner end seem normal?

Thanks but I figured it out. After the last vacuuming I neglected to purge the excess air from the system. After I purged its situation normal (you can fill in the rest!).

 

[Bcorig]

Is the flow keeper valve thing working correctly?
Perhaps air is getting in the line somewhere /leaky hose? Suction side leak in your plumbing that causes an air bubble upon startup?
Mine was too finicky- I abandoned it for a robot.

Thanks but I figured it out. After the last vacuuming I neglected to purge the excess air from the system. After I purged its situation normal (you can fill in the rest!).
It seems every time I post a problem I can’t solve to TFP I solve it after I post the question. It must be magic.

 

[Mdragger88]

Hey, So long as it works right? Glad its back going for you!