Originally Posted by qquake2k
According to everything I've read, the 306 is rated at 303gph.
Yes, that's what my box says as well.
Here's a shot I just took. This is after a filter clean less than a week ago, new floss media and washed the coarse media. No carbon at all, so just one layer of floss (new, from Fluval), coarse and bio media from Fluval.
I realize a photo is not a flow rate, but really -- does that look like 300 gph
, or even anywhere in the neighborhood?
This is a two month old filter, brand new impeller cover (that was the first theory), so no clogged lines, etc.
PS. Go ahead, laugh at my home made nozzle. I do have the FLuval one (which puts out a bit more pressure but doesn't do more surface area). Also, this proves Sharpie ink does NOT last -- that was solid black 2 months ago. Next time krylon paint I think. Wish they did Schedule 40 in black.
PPS. I turned it up so you could see the flow, normally it goes out parallel and does a decent job of disturbing the surface.