Master Recirc 1073.090 question.

[SeanT]

Hi Roger,
Been a while now.

I have a question about a Master Recirc pump 1073.090 that I am using on my closed loop system.

I purchased the pump new from another reefer and it is in brand new condition.

It is pumping out through an Oceans Motions 8 way.

The pump sits in my stand and the outlets are in the bottom of my tank.

The OM 8 way has no more than 2, 1" openings open at one time.

However the flow coming out of these nozzles is very weak, are these pumps a bit on the weak side?

Second thing, the pump is rather loud with a pretty significant hum to it.
To put it in perspective, my Reeflo Hammerhead return pump is a bit quieter than this pump.
Is this normal?

Thanks,
Sean

 

[Jar*Head]

Sean, the pump pushing 2200gph with max head pressure of 16 feet. If you are mounting the OM too close to the pump it will restrict the flow even with 2 x 1" outlet. I would suggest to extend the pipe up approx 24" then the ball valve then the OM. By doing that you will notice a significant differrent on flow and less back pressure.

As for the noise, if the pump making grinding high pitch noise like the propeller is rubbing against something. You may need to replace the front cover. Your pump is brand new, tunze USA will send you a new cover to replace the old. The first batch of tunze master circulation 1073.090 has this problem and required to replace the cover. I am not sure how many there is but Roger has mentioned before. Here is what im talking about

If you extend the tube out a bit may help reduce the noise as well .

 

[SeanT]

I don't see why having that distance would make any difference to back pressure.
Pressure is pressure.

Its a moot point anyway, there is no room to extend the OM away from the pump.

 

[rvitko]

The pump does lose a lot of flow from the restriction down to 1", it is a higher volume, lower pressure pump. If the pump is really loud I would suspect the bearings in the impeller are worn, the shaft is broken or a remote possibility the front cover is the wrong one. Some of the first 1073.09 had the wrong front cover but we changed every one of them to my knowledge.

 

[SeanT]

It is new so I dont think worn is a possibility.
I will check the shaft (did I just say that ).

Would a different pump such as a Dart be better in this application?

I could transfer the Tunze to the return if so.

Thanks,
Sean

 

[rvitko]

Maybe not a dart but something that is more pressure rated, with an equivalent flow and smaller 1" output like a large Iwaki or one of the Sequence pumps that is high pressure, most large diameter output pumps are more for shear volume and they suffer when the diameter is greatly restricted.

By the way, nice to see you around!

 

[SeanT]

I'm like gas at inappropriate times...always around.

I will research a new pump for sure.

*Side Question*

Due to a tank design flaw in my external waveboxes, I was wondering if it is possible to use the wavebox streams-drivers-transformers as normal streams on a multi-controller?

Thanks,
Sean

 

[rvitko]

It is if you either upsize the transformer to 6200.80 or downsize the prop to a 6100 prop. The transformer cannot handle the higher load of the big prop long term.

 

[SeanT]

Thanks Roger,
I may have to do that.
They built the external waveboxes the EXACT height of the tank itself...not the height of the top of the brace, so any wave action will cause overflowing in the back.

I may try my hand at Weld-On and build walls. if that fails I will change some parts out.

Sean

 

[Jar*Head]

Sean, it will not overflow as my tank build the same way. I thought you were talking about the box is too small or the holes wasn't but. Don't worry about the over flow. Remember your water level is at about 1" to the brace that is the max water level will be inside your wavebox.

 

[SeanT]

My wavebox is filled to the VERY top.
I dialed back my return pump by 30% and now they are filled 1/8" from the top.

 

[Jar*Head]

I forgot you use the barracuda as an return. Can you drop the water level inside your overflow box?

 

[SeanT]

Without standpipes the water level is that high.
It sucks too, as it washes away my plans.

 

[Jar*Head]

Honestly, your return pump is too strong, your overflow teeth is too narrow for that many gph.

 

[SeanT]

The problem is that the overflow teeth are 1 1/4" long and I ordered 2 1/2" in length.
The manufacturer is crap.

 

[Jar*Head]

Sean, same thing happened to me. I have to use the dremel to cut it down another 1.5" and making it wider as well. It may be too late for you to do that.

 

[SeanT]

Yeah, I shouldn't have ordered from someone with such a horrible reputation.
My fault, live and learn.

 

[chippy70]

<a href=showthread.php?s=&postid=13914579#post13914579 target=_blank>Originally posted</a> by rvitko
Maybe not a dart but something that is more pressure rated, with an equivalent flow and smaller 1" output like a large Iwaki or one of the Sequence pumps that is high pressure, most large diameter output pumps are more for shear volume and they suffer when the diameter is greatly restricted.

By the way, nice to see you around!

Hi Roger its Roger:eek2:

I have just purchased this same pump and are you saying it is not best used in this suituation.

When reading up on this pump it states it is purfect for pumps in basements below the tank and to be used in this suituation

have i Just waisted my money??

 

[rvitko]

For circulation it will do the job well if you use 1.5" pipe but feeding accessories with all sorts of restrictions and elbows it is not well suited.

 

[chippy70]

what size outlet does it have 1.5"