Jebao WP25 vs WP40 Magnets

[ronl]

I assume the magnets on the WP40 are bigger and stronger than the magnets on the WP25. Can anyone that has one of each confirm whether the external magnet on the WP40 can be used with a WP25 internal magnet and whether it holds it stronger than the WP25 external magnet?

 

My tank is 1/2" glass and the WP25 magnets don't seem to provide a strong enough hold that I would trust it not to fall off. A slight bump dislodges it.

 

Thanks,

Ron

[londonloco]

I have a WP25 on my tank, which is also 1/2" glass, the magnets hold firm.  I just moved the ph last week, and had a hard time getting it to pop off at first.  

[Djplus1]

The diameter on the WP25 mag is 2 1/4" and the WP40 is 2 1/2". I would assume that it would be a tad stronger.

[ronl]

I have a WP25 on my tank, which is also 1/2" glass, the magnets hold firm. I just moved the ph last week, and had a hard time getting it to pop off at first.

 

Interesting and good to know. I was testing mine on an empty tank and didn't have to put much pressure at all on the pump before it came off the glass. I was envisioning it falling off and sand and water blowing everywhere.

 

Maybe water in the tank makes a difference. The pump will be lighter and the rubber cover on the magnet may create a suction.

[Djplus1]

Interesting and good to know. I was testing mine on an empty tank and didn't have to put much pressure at all on the pump before it came off the glass. I was envisioning it falling off and sand and water blowing everywhere.

Maybe water in the tank makes a difference. The pump will be lighter and the rubber cover on the magnet may create a suction.

There is suction. The pump will hold just fine IMO.