I see the hate for suction cups now!

[sfsuphysics]

So yesterday I got a new pump... Seio 2600, wooooooo yeah 2600 gph!, lots of flow. So I moved my 1500 to the other side of the tank, all 6 suction cups are working no problem. About 10 minutes before i had to leave I went to look to make sure everything was going alright.. and what do I see? White cloudy tank *UGH*. So quickly ran through my mind what I have that could do that, spawning(??), that little piece of caulerpa finally went "sexual", ah ha! Pumps!

Not being able to see anything I just unplug all the pumps, my poor foxface was smooshed against the front of the glass breathing a bit faster he almost needed to see me for reassurance or something it seemed. Well I find out it's not the new pump, but the older one, so I only had 1500 gph blowing into my sandbed, I plug in the other pumps and left, I know 10 minutes is not going to let that stuff settle and went to dinner. Interesting note a nice white background makes all the algae on the front glass very visible! I was half tempted to get out a razor blade and scrape it.. but nah.

Anyways I got home and saw the "damage", everything was alive, light powder on all the rocks sure, and a nice big ditch in the corner of the tank a few inches deep. No evil toxins got released to kill my inhabitants, or any of that stuff which people say exist in a DSB.

Anyways just had to share (and brag about my new pump ).

 

[dswong01]

Mike,
Try the magnet mod
http://www.cvreefers.org/showthread.php?t=2536

 

[Elite]

Always clean the surface before you move the pump to that area. Happen to me several times. If the surface dirty, the suction cups will come off soon or later. I hate that so much that's why I ordered the Tunze pumps /w the magnet ..

 

[capescuba]

Mike,
Try the magnet mod
http://www.cvreefers.org/showthread.php?t=2536

Actually this could well affect the performance of the pump - I'm sure our resident Physics expert could articulate better, but the pump works using magnetism and having a big ol' magnet next to the pump will, IMO, add resistance to the pumps motor ...

 

[sfsuphysics]

magnet probably wouldn't affect the pump much at all, they really are weak at any distance beyond the thickness of the glass/acrylic they're designed for. Problem is the 1500s are quite a bit bulkier than the 620, don't know if I'd trust a magnet.

And I did clean the surface, infact I just did a major tank cleaning earlier where I scrapped all the surfaces with razor and pulled out almost a half pound of algae!

 

[jimsar]

Suction cups suck. Why not use the swivel mod? It requires drilling 1 1/4" hole.

 

[sfsuphysics]

Huh swivel mod?

A hole in the tank?

 

[jimsar]

No hole, just use the hardware that comes with the pump. The diagram show the swivel under the pump. With the "mod", you put the swivel above, which requires drilling a hole one of the parts. I know there's a thread on RC describing it, but I never saw it. I made mine after seeing Akacable's setup.

I did drill a hole on the eurobrace, though, to hold the hardware.

 

[psionicdragon]

I used a magnet for the 1500..works well on a stand 40gal glass and acrlyic tank. But on a 1/2 inch, it slips...