Got my Odyssea CFS500

  • We are currently upgrading MFK. thanks! -neo

Soggy

Feeder Fish
MFK Member
Oct 27, 2010
108
0
0
Seattle
THE GOOD

1) The canister itself is plenty sturdy and doesn't seem to be cheap in any way. It's no FX5 but I'm not worries about it breaking in any way. some of the reviews say that the ports are breakable but they seem plenty sturdy to me.

2) Moves a ton of water. I didn't measure it so I can't say if it's actually 500GPH but it is putting out a god bit more water than both my Aquaclear 30 power heads (175GPH) combined.

3) Customizable. I've seen some great mods for this filter around the internet and I've got a few ideas of my own.

4) The pump is easily removable and looks like it could be replaced with different pumps.

5) The pump is sucking water out of the filter instead of pushing water in. This configuration causes low pressure inside the filter and creates a better seal on the lid. Another positive is that if the lid were to fail the pump would suck air into the filter instead of pushing water out. A final benefit is that the filter is much easier to prime with the pump in the bottom of the bucket instead of built into the lid.

THE BAD

1) The o-rings on the ports were to big as stated in other reviews and make it near impossible to attach the hose valves to the canister. Replacing the o-rings with #17 o-rings from home depot fixed the problem.

2) The hose clamps they sent are to big to fit, replaced them with real hose clamps from home depot fixed the problem.

3) The ribbed hoses they sent with the filter feel very thin and cheap but are working so far. I would have replaced them also but home depot didn't have anything good (that I could find) and the pet store wanted $3 a foot for the good stuff so I'm ordering some online.

4) The Siphon and return do not clamp onto the tank but just hang on the tank, this isn't such a huge deal but I would rather have something that cant shift.

5) The siphon's minimum depth is around 10 inches or half way down my tank, it dies come with an adjustable depth part that can be attached to but that would put the siphon into my gravel. This really isn't a problem but IF the return hose breaks it could empty half my tank in 4 minuets.


OK so this is my first canister filter so I have nothing to compare it to. I've seen good and bad reviews and decided to take a risk on it and I'm glad I did. Other than replacing $5 worth of bad parts I've had zero problems. I couldn't think of any pictures to take that aren't already on other forums but if anyone has something they want to see I'll try and get a picture of it.

This filter is going to replace my 2 UGFs (thank God) but I'm letting them run for another 2 weeks while the canister builds up some bacteria. My poor fish are living in a 55gal tank with 850 gallons of filtration, it's like a hurricane. Once the 2 weeks are up I'm tearing down the tank to remove the UGFs and install egg crate and sand.
 
sounds good, but i would think the pump should be before the filter, thatway when filter gets full and restricts it would be on the outflow side instead of intake... am i off in this thinking?
 
brich999;4877737; said:
sounds good, but i would think the pump should be before the filter, thatway when filter gets full and restricts it would be on the outflow side instead of intake... am i off in this thinking?

I don't see how it really matters what side of the filter the pump is on once the filter is clogged but I do see a few other advantages to having it after the filter.

1) As I stated before having it suck the water out of the filter creates low pressure inside the canister which helps seal the lid and prevent leaks.

2) Having the pump after the filter prevents debris such as sand from going through the filter and damaging/gunking up the impeller.
 
Well I don't know much on the subject of pumps and flow but I can imagine a bit of why it be better for the pump to push water through a filter, I suppose time will tell weather this pump is up to it's configuration. I think it's interesting that the much loved FX5 uses a similar configuration to this filter with a pulling pump.
 
surfpalmsncycads;4878130; said:
i heard they make a cfs 700 anyone know anything about it? the 500 seems great for the price!

They do make a 700. The 700 is bigger, pumps 700GPH, is clear so you can see inside it, and has a small UV sterilizer.
 
So i got home from work today and immediately checked the filter and it has a small dripping leak. iff I could I would try replacing the giant O-rings around the lid as I don't think they're making very good contact. I'm gonna experiment with a few things to see if I can get a better seal and then I'll get back with my results.

My suspicions about the sucking filter creating negative pressure to seal the lid were confirmed when I turned it off and water started dribbling out one side of the lid. to turn this filter off without dumping water all over the floor you have to close of the in hose and disconnect it, wait a few seconds for the filter to pump some water out and then close off the out hose and unplug the filter. If both hoses are left open and the pump isn't keeping the pressure low then it leaks badly. Kinda makes me wonder about power outages. I think Ill get a shallow basin to set this filter in.

This filter is like the fixer up house of filters.
 
You never want a pump to force water into a sealed container. Your asking for trouble because the pressure inside the canister will increase far above from the static water pressure.

Especially once the filter starts to clog, the pressure increases even more.

When the pump is on the output side of the filter, it helps to decrease the pressure inside the canister which increases the safety and durability of the canister.

All Canister filters are designed this way and its for a very good reason.
 
I have 2 of these filters. I have had to replace both leaking lids due to stress fractures after about 45 days of use. Here is my advice the intake hose is to large restrict the intake to about 3/4 open. Remove the blue pad it will quickly clog restricting water from reaching the pump increasing pressure in the canister resulting in leak. do not over tighten red nuts use non potroleum based lubricant ie KY kelly. Follow these steps you should be fine. Otherwise you run the risk of flood as in my case good luck.
 
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