Ehiem Canister Filter?

[nev]

Anyone can advice is it common when you switch off the canister... the canister will leak... ???

my model is 2028?

when i on it... no leaking leh...

[nev]

Sorry to add on...

i never touch the valve... just switch off the switch of the cansiter..

then my canister will leak liao... is it common???

if short circuit... jialat leh sure flood...

[ymmij]

Shouldn't happen. Leak where?

[nev]

my dad off wrong switch...

now then the canister leak... without switching off the valve....

[nev]

Originally Posted by ymmij

Shouldn't happen. Leak where?

sorry leak from the top... the motor there..

[boxedfish]

never encounter that before and i do that often but maybe not as long as what happened to your case. Maybe with enough time, might leak.. i normally off for like 5-10mins duration

[Oneiromancer]

Happened to my filter.. not really sure why also. Suspect maybe the seal has a problem? Anyway due to age, the side of my 2028 has cracked already so I don't use it anymore.

[edwardng88]

Maybe u got to change e o-ring.

[squawkbox]

You need to replace the head seal (square shape), which I believe has been hardened due to heat generated from the head unit.

When you power down the canister, there will be 2 back flow pressure build-up, one from the suction pipe and the other from the outlet pipe. The pressure build-up within the canister now is very much greater than when the canister is power on, that at some point the square rubber seal no longer can withstand, due to its wear and tear. Therefore leak occurs.

Hope I have answered your question.

[nev]

Originally Posted by boxedfish

never encounter that before and i do that often but maybe not as long as what happened to your case. Maybe with enough time, might leak.. i normally off for like 5-10mins duration

5sec leak alrdy... no need wait 5-10mins

Originally Posted by Oneiromancer

Happened to my filter.. not really sure why also. Suspect maybe the seal has a problem? Anyway due to age, the side of my 2028 has cracked already so I don't use it anymore.

mine no crack....

Originally Posted by edwardng88

Maybe u got to change e o-ring.

working as normal... just when i off the switch... and never off the valve... it will starts to leak...

Originally Posted by squawkbox

You need to replace the head seal (square shape), which I believe has been hardened due to heat generated from the head unit.

When you power down the canister, there will be 2 back flow pressure build-up, one from the suction pipe and the other from the outlet pipe. The pressure build-up within the canister now is very much greater than when the canister is power on, that at some point the square rubber seal no longer can withstand, due to its wear and tear. Therefore leak occurs.

Hope I have answered your question.

bro can show pic? dun get you...