What pump is it?

hi
steve.
if the pumps 0n the bottom,raise it as in the winter the pump shouldn,t be there it should be @ least halfway up due to warmth exchange of the water.

filteration of the pump may be a problem so again check this.

as sean says what sort of pump is it?.

it also may say maybe your pond needs clearing out due to the autunm leaves falling into it.

also count your fish!!!!!!!!!!!!!!!!.

well a few ideas anyway.

-------------fishmaduk----------david---------------

Put it in a pair of tights as a pre filter....if it's just for a fall. Don't know if it would help if it is to a filter though.

Pump is a Bioforce 2500 raised above the floor. Late posting I know...oops. forgot I asked this Question.

Sorry all.

Steve I don't know this pump, is it solids handling? I think you need a pump that can pump the muck to your filter rather than try and strain it out in the pond and leave it there. Raising the pump off the bottom may help with the pump blocking but would defeat the whole point of having the pump on the bottom, removing the muck out of the pond to the filter.

I cant find that pump either, one other possibility to look at is the size of the pump flow in relation to the ammount of water in your pond, you need to pump half the volume of water per hour to get achive a good filtration, so if you have a pump that is to powerful it will suck up all the debris by drawing it off the bottom

Its a common problem for most pumps, blanket weed will drift towards the flow and even small amounts will clog a pump grid, no easy solution other cleaning the botton of the pond and trying the pump in another place, a real pain but sometimes the only thing that will work.

Also check the return to the pond from the filter that might be coming out fast enough to stir the bottom pushing debris towards the pump as well as the pump drawing it?

Right once again I`m incorrect. The pump is an Aquarius 2500.

Small pumps are worse then big ones for clogging I think, I bought a couple of those square pond baskets with the holes in, drilled a hole in one for cable and pipe and tied them together around the pump, stopped it from clogging up so quick, but that only buys a few weeks before it needs cleaning.

I assume this is an Oase aquarius, if so put the entire pump is an large but well 'stamped' aquatic plant basket so that the basket acts as a strainer. By well stamped I mean the perforations are actually open and not flashed over.

good point alan - we have a solids handling pump - chops up the c**p and sends to filter but every know aad again the pump basket needs a clean! and thats a 12000 ltr one jo o/