External pump problems

[ccole]

Hi guys and girls
Me again need some more help. I have an external filter from all pond solutions. Its output is 1400l/h 35watt pump power .
The problem being that it has dramatically reduced its pumping output to just a near trickle. I've cleaned it out and restarted and primed it but stll not helping.

Anyone got any ideas?

Cheers
Cole

 

[bigbird]

hi,

have you checked the properlor and shaft as well ? might be cracked. I would take fully apart and clean and reassemble. good luck cheers jk :thumbup:

 

[Lornek8]

Check impeller
Check hoses, often gunk builds up in the tubing dramatically reducing flow.

 

[D-MAC]

Check impeller
Check hoses, often gunk builds up in the tubing dramatically reducing flow.

Spot on advise.
Gunk build up in the tubes account for 90% of power drop off.

 

[ccole]

gunk! super stars - had a look round back of tank and was filled with it! cheers guys