9420 hydrofoamer

[rvitko]

The 9410.040 is available (limited numbers), we sent John a half dozen this week. 9420.040 is now coming with skimmers in its final form but I don't yet have them as pump only.

 

[ReefKeeperRob]

I desperately need to replace this absurdly loud sicce on my octo x 200 - any word on the 9420.04? I might just by a new I-tech skimmer with the 9420.04. I need it asap - my sicce is making me nuts!

 

[shawnz28]

There might be a little more recent update but here was the status a couple days ago
http://reefcentral.com/forums/showthread.php?threadid=1611203

 

[rvitko]

We will get some in next week, but only a few, they will go to John, so he will be making a few skimmers from them.

 

[austinaqualung]

I just bought a new 9420.040 from Marine Depot. The impeller has 3 rows of pins with the last row cut about half way down. Is this the new or old impeller design? It was mentioned earlier in this thread that the latest impellor had an extra row of pins.

 

[rvitko]

New. The first 60Hz ones had 2 rows, the 50Hz ones have 3 rows, new 60Hz ones have 2.5 rows essentially. With 50Hz the impellers spin at 3000rpm vs 3600 at 60Hz so they have to be bigger.

 

[cjgalante]

do they get the same results?

 

[rvitko]

The US pump is slightly stronger now than the Euro pump, before it was slightly weaker. Now it is maybe 5% stronger and before it was about 15% weaker.

 

[austinaqualung]

Roger,

I have a 9440 that I bought about 1.5 years ago. I've had constant problems with the ceramic shafts breaking after a month or so of use. One of them is still limping along, but I took the other into Bruce at Aquatek here in Austin, and he swapped it out with one of the newer hydrofoamers. It worked fine for about 2-3 weeks, and it started making some grinding type noises. I took it apart and cleaned it (it wasn't dirty at all). This fixed the grinding noise for some reason, but I have had to do this twice now, as the grinding noise comes back after a while. That is one of the reasons I bought another hydrofoamer to have as a spare. I did notice that it's pinwheel (the one that Bruce swapped out) has 3 rows, but it doesn't have the last row at half height. Sounds like that is the 50Hz version?? Could that be causing the grinding noise.

Thanks,
Doug

 

[rvitko]

For a brief time we did use the full 50Hz needlewheel, it draws a bit more power, and takes in more air (the pump may be basically choking on air and that is the cause of the noise). I would need to see the pump to be sure that is the cause, but it could be. It may not be getting enough water so air is getting into the bearings.

 

[austinaqualung]

Can I just bring it in to your shop, since I live here in Austin (rather than shipping it to you)? Seems that would be the easiest thing to do...