Mine is set up slightly differently to the picture as i have already got the feed pipes from the gutters in place so the filter is fitted on top of the tank and i have capped of the small outlet and all of the water is filtered and goes straight through into the water tank. It also seems quite
is it a plastic mesh? The way you have got yours set up means that if the filter gets blocked then the does it back up the pipe or just go unfiltered into the tank? Also, I cannot work out from the pic how you clean the filter if it is inline with the downpipe? The other filters I have see have a side entry filter which completely removes for cleaning