Air draw on the Tunze 9420 skimmer pump?

[Maximus]

Hi Roger, I am considering buying a new pump for my ATB 840 skimmer that has a bit more air draw on it. The skimmer is an 8" cone and is 20.5" tall. Can you tell me if the 9420 would be a good match to my skimmer? Is the 9420 a modified Sicce pump? I really want to get away from Sicce pumps. Thanks.

 

[shawnz28]

The new Tunze silence pumps are Tunze's own design, they are no longer a modified PSK2500. While I personally don't think you will have much if any of a performance difference, especially if you are using the large pinwheel, the gain would be if you are having start up issues.

 

[rishma]

I think you will get ~900 lph on an 840 body, perhaps a bit more.

The 9420 hydrofoamer gets fantastic reviews for reliability and silence. It does not have the features that trouble PSK-2500 while still pulling lots of air.

The hydrofoamer has the volute molded to motor, needlewheel molded on to the magnet (eliminates start-up issues), neodymium drive magnet for more torque & lower watts, unidirectional start up, fixed ceramic shaft (quieter), and Roger customer service.

That is what I would go for....

Cheers.

 

[Maximus]

Thanks guys. I appreciate the input. It sounds like the 9420
is a good fit for the 840.

 

[Maximus]

Wow, 7 years later and I still have an ATB 840! Roger, does Tunze still make the 9420 skimmer pump? Thanks!

 

[moondoggy4]

Yes they do and make sure you get the new magnet they are grey now. Nothing really wrong with the old ones my usually last about 3 years.

 

[Maximus]

Thanks again, Moondog. Appreciate it!