casper said:....... all understood.
Seems to me you need more consistent flow thru the sluice also I'm not a fan of the BUNNINGS Mat 'cos i found like you it didn't clear out efficiently, the channels are shallow, ribs are flat topped and close spaced so i ditched it for the CLARK Rubber ribbed mat (see photo) and the performance difference is significant at my 9 litres per minute flow rate.
https://www.prospectingaustralia.com/forum/img/member-images/562/1398519749_picture_14.png
ah I see, I was thinking that the v-mat from bunnings is different to what your using and thanks heaps for confirming mate(no clark rubber in albury or wadonga for some strange reason)
should I put the desert fox order on hold till I do this still you think?
scott