Tunze nano mod

[E-A-G-L-E-S]

please post back every few days/week to let us know if any problems arose.....if it works well for you and doesn't start to lose it's flow i will jump in this boat.

either way....good diy and it seems to have worked out well for you :thumbsup:

 

[GSMguy]

<a href=showthread.php?s=&postid=9043964#post9043964 target=_blank>Originally posted</a> by Rook
I wonder what the point of that internal tube is anyways?


Cool and easy fix to get more flow. Do you think you get wider flow as well? And, do you think just cutting out the bottom part and leave the top would work as well, this way you may get less vortex of the water if the pump is near the top of the tank.

to me the internal tube is what keeps the flow even and steady so as not to strain the shaft

we shall see

 

[jcr6479]

I guess another option would be to drill holes in the tube to allow more intake as opposed to cutting it off. I have a 55g (36"x18"x19") and currently have 2 6025s. I also have 3" of sand so I not sure if I would want that much flow. I may cut holes in it though to see if it increases any.

 

[E-A-G-L-E-S]

jcr...i have a 58g w/DSB(36"x18"x21") and have 2-6025's and a 6000 on controller and want more flow

 

[jcr6479]

I recently upgraded from a 30g and the 6025s were almost too much flow. I think I am pretty much stuck with the 6025s for now since my wife bought them for me for Christmas. I don't even want to imagine her reaction if I decided to upgrade to 6045s. LOL. I agree about the flow. I just don't want a sandstorm.

 

[E-A-G-L-E-S]

no sandstorm here with the 2 nano's and a big 6000....it's all about positioning

 

[GSMguy]

i have a 50g 2x6025s and a seio620 and need more flow
i have 3to 4 inch dsb

 

[RichConley]

If the flow dropped off after you bought it, why not just send it back, instead of cutting it up?

 

[mr pink floyd]

i dont have another pump to keep my tank going

i have an old MJ mod thast taken apart i might be able to get started, and a Mj 900 for water changes

so i dont exactly have a backup(yea yea, not a good idea) but this seemed to work great

plus i also wanted a bit more flow too

this gets around every single rock in my tank

 

[Rook]

It is curious as to why the pump had decreased flow in the first place, unless there was something clogging the intake or something got into the shaft.

 

[mr pink floyd]

im curious too, it made the same noises, it just didnt seem to push the water as wide or as far

 

[bonerfortuna]

Two comments, having been involved with Germans and German technology I can tell you that wall is there for a reason, what it is Im not sure yet. It may simply be to regulate the flow so that the next model, I think 6045 will have a somewhat less restriction and hence more flow. Or it unfortunately can be designed to reduce side to side flex on the prop shaft and this means you will get failure sooner that normal. You didnt just stumble onto something that the engineers at Tunze missed.

 

[mr pink floyd]

it had nothing to do with side to side flex, the prop would smack against the side and it makes a loud noise, like i tried to put the cover on while it was running once

i think it is more to regulate flow and aim it, but im not entirely sure

well find out i guess

 

[GSMguy]

rodger would have replaced yours

 

[vidrine7322]

i just did mine, really good increase in flow, I'd say nearly double.
I'n my 4 foot tank i have surface agatation across the entire thing from only one of them, before it was only around half, maybe a little less.

 

[jcr6479]

So who is going to break the news to Roger? I am interested in what he will have to say.

 

[mr pink floyd]

vidrine, so how do you like it so far?

it didnt change the noise or vibrations at all for you right?



and lets let roger find this one on his own

 

[jcr6479]

Per Roger, "The problem is that the tube is actually there to correct the prop rotation. If the prop spins backwards the magnet/ prop assembly flies down the tube until it breaks contact with the electromagnetic field, in falling back in it spins the right way, like a falling maple seed and syncs up with the magnet correctly. The tube is to keep the magnet from flying out of socket or hanging up on the intake screen. Contrary to popular belief the 6025 and 6045 use the same front cover."

 

[GSMguy]

thanks for asking thats what i thought

 

[jcr6479]

I also asked about drilling holes, but he has not responded yet. It the tube serves the purpose he described, I don't see what problems could arise out of drilling holes.