Have now removed the old internal filter and fitted most of its media temporarily in the new filter - so much more room in the tank!
I learned from the Oase info that the circular quick release fitting (looks identical to the Edens) for the two pipes closes off the flow so in theory there should be no flooding when disconnecting - I haven't tried it yet!
To follow on from my previous posts about my own purchase of an Eden 521, which is the size down, I set it up last night and so far so good. It certainly seems quiet, though as this is my first canister filter I don't really have a benchmark. The three slotted chambers replace the usual arrangement of stacking baskets and I invested in the optional integrated heater. The inlet chamber has a large medium-coarse sponge plus a space where the water flows in. A removable baffle separates the first chamber from the centre chamber. This has another large medium-coarse sponge and there is space under for (provided) activated charcoal media (if required). I have placed some poly wool media there as I don't need any chemical filtration at present. The design draws water up the centre chamber towards the impeller input but according to the schematic some of the water is driven into the right hand chamber, which contains the bio media and, in my case, the heater. The water then travels down through the bio media (in the end I bought 500g of Fluval biomax to replace half the ceramic rings that came with the filter). The filter draws the water through the bio media more slowly than through the sponges in the two previous chambers, which should be better for the biological action. When it reaches the bottom it goes back into the centre chamber flow and some of it will be recirculated back into the bio chamber and the resit returned to the tank through impeller.
I think the chamber design is neat and the recirculation system that slows down the flow through the bio chamber is promising in terms of efficiency. However, I was hoping to use nylon mesh bags to contain the ceramic/biomax media but because the heater installation uses up the central space I wasn't able to use the couple of medium sized bags I had. I really need larger bags less fully filled so they can be moulded to fit the space. Therefore I have just filled the media in the chamber loosely.
The inlet and outlet spigots form part of a quarter turn cap so the pipes can be removed from the filter conveniently. Flow control valves at the filter end of the pipework are not included (I've ordered some) but there are controls in the elbows that connect to the tank side inlet and outlets. I fitted the supplied spray bar though there is also a small deflector attachment you can use on the elbow outlet instead. The supplied rubber suction pads are very good quality.
At present the unit is under the level of the base of the tank temporarily on a stool as I need to shorten the hoses for the filter to be positioned on the same shelf to the side of the tank.
The flow is really good and my platys seem to enjoy swimming in and out if it. The old corner box internal filter remains and I will continue to run that for a couple of weeks and then switch it off and test for nitrites with the expectation that the new filter will have become biologically active. I've placed some old filter media in the new filter to help start things going.
Happy to answer any questions if anyone has any.
I have had a peek but as it's my birthday present for Saturday I won't be setting it up until then. But it looks great and there are no 'Made in China' labels - only 'Made in Italy' ones, so let's get that out of the way. Where are Jebao filters made?
Anyway, it comes with all the filter media you need to get started but I will probably substitute the ceramic rings supplied with some sintered glass media, which I read is superior. It fits beautifully into the space next to my tank, as planned. I've also ordered a 200W 425 model heater that fits this filter.
One thing I have noticed is that unlike my Juwel internal filter and conventional canister filters there are no vertically stacking media baskets. When you unclip the top where the pump lives, three vertical chambers are revealed with sliding separators. The central one can stack two different types of media if required. The water flows from one chamber to the next and there is a partial recirculation between the centre and bio media chambers that is supposed to maximise biological filtration functionality. Could be just marketing twaddle of course. Another nice touch is that there is a carry handle built onto the top of the unit that can lie flat when not in use. I'm looking forward to simply carrying the whole unit to the sink at cleaning time, rather than having to fish out dirty sponges and carriers from the existing internal filter while it's still in the tank.
I'll run the old and new filters in parallel for a few weeks to ensure the new filter is biologically generated. I'll report back on how quiet (or otherwise!) the unit is once it's installed.