Originally Posted by
ben1968
Just my 2 penneth Steve, Ive always used sumps under tank, as, similar to motorbikes, nothing beats cubes. Coming from a Koi background, im a firm believer in a slower flow, large volume filter. i have a 3 bay, 2 transfer homemade unit, and rinse out the first foam part every month in rainwater. As for feed, I use a double weir system that i made to avoid the hole in the tank problem ( not keen on the loss of inherant strength that the hole creates). Ive never had a flood attributed to the sump. ok, the weir isnt the prettiest bit of kit, but it has done the job for years now undisturbed.