Vortech MP40 sliding down

tdyrkacz · Jul 10, 2015

I purchased a used setup a while back and am now in the process of setting it up. I have a build thread in the cube tanks forums.

I got 2 used MP40s. One of them appears to be sliding a little bit. This is the dry side that keeps sliding down. The other one seems fine. I don't have the sticky tab so I used a cable stickie i bought at lowes but I have to use 3 of them or else they pull off. Is there a better way to mount the mp40 to make sure it stays in place? Are there some hanging brackets which attach to the top of the tank wall I can use?

The same pump which slides also makes what sounds like a whistling \ squealing sound at times if i turn it up high enough. Thanks in advance.

redfishbluefish · Jul 10, 2015

Do you have it set for the right glass (or acrylic) thickness? If that's not right I could see it slipping.

Breakthecycle2 · Jul 10, 2015

I have the exact same problem with one that I bought new a few months ago. I adjusted the dry side for my glass thickness, but it still doesn't work.

tdyrkacz · Jul 10, 2015

I have it set correctly. I even tried setting for thicker glass but still slides down. The magnet is too weak.

hybridazn · Jul 11, 2015

Even with the dryside properly set it will still move and slide a little without the rubber gasket that goes between the glass and the dryside

tdyrkacz · Jul 11, 2015

I have the rubber gasket

Mark426 · Jul 11, 2015

So...how thick is your glass? I looked at your build thread (very nice BTW) and the glass doesnt look to thick. But..still asking.

mcarroll · Jul 11, 2015

Sounds like it's not mounted right - and/or possibly already somewhat broken. I have one (not in service) in similar condition.

The wet and dry sides must be dead-even during running or BAD THINGS will happen. A defect is less likely (since yours is used) but could cause the same thing.

If you haven't already I'd contact the manufacturer to get them to help confirm this and to determine if it's something minor like a bushing or something worse like the motor.

tdyrkacz · Jul 11, 2015

My glass is 3/8. I will send an email to ecotech

evolved · Jul 13, 2015

tdyrkacz said:
I have the rubber gasket

The rubber gasket for the dryside, right? The rubber gasket shown here?: http://store.ecotechmarine.com/store/vortech/mp20-40-parts

tdyrkacz · Jul 13, 2015

evolved said:
The rubber gasket for the dryside, right? The rubber gasket shown here?: http://store.ecotechmarine.com/store/vortech/mp20-40-parts

Yes that's the one.

Tayloreefer · Jul 14, 2015

Shut down and re-set

tdyrkacz · Jul 15, 2015

Tayloreefer said:
Shut down and re-set

I will try that. Can you explain why you think this may help with the sliding issue?

Rob's Reef · Jul 15, 2015

Once you know where you want you pump, get the gasket wet and stick it on the glass. It acts as a ledge/suction cup for the dry side to sit on.

Akida17th · Jul 15, 2015

That rubber partition needs to be set on the dry side perfectly. I had a brand new one installed on my 93 cube and was having similar issues where I didn't see it slide down but I heard the motor vibration indicating the motor wasn't aligned correctly. I readjusted the rubber partition and it did the job for me. Sometimes you think it's on perfect but the smallest infraction will throw it off sooner or later. Good luck!

tdyrkacz · Jul 16, 2015

I will try all of these suggestions and report back once I've had more time to experiment.

ncfishguy · Jan 4, 2016

What fixxed it

tdyrkacz · Jan 4, 2016

I took some plastic anchors the type used for some tents and hung them from the back wall... i then drilled a hole through them and used a zip tie to attach to the cable from the MP40... you can't see the setup at all and it holds them from sliding down.