new pump and its causing filter overflow

[julia22]

I'm a true amateur hobbist. I have a 1800-2000 gal pond. Its the very basic, no bottom drains etc. I currently have a Cyprio 2500 bio filter (dual 1 1/2" discharge hoses) and UV light. When my submersable pump died I decided to upgrade to an external pump. I bought a Sequence self-prime 6000prm17. I read the forum and I drew the conclusion that bigger was better. Well, in some cases, this is probably true. In this case however it was not. I finally got the pump connected only to realize that the filter will not accomodate the pump size. The filter is overflowing!!!!! I'm not sure if the pump is returnable, if not what are my options. I'm guessing a new filter of some sort. But what kind? What will handle this pump? My space is limited. The current filter is 2' long and about 18" wide. I don't have much more room than that without doing some major, major changes, including electrical. Any suggestions on specific filters would be greatly appreciated. I bought the larger pump with the expections of getting a new filter in the future, But it maybe sooner.

[danzcool]

The easiest option right now would be to put a tee in the line after the pump and before the filter, put ball valves on both directions of the tee and have one tee go to the filter and the other back to the pond, adjust the ball valves until you get about the maximum through the filter that you can without it overflowing.
Ideally you would put another filter on the line going back to the pond.

[jnorth]

You could get a bead filter that can handle the pump. Or to save money for now you could install a tee in the line going to your current filter and just run the second line right back to the pond. Put a ball valve inline between the tee and the filter so you can adjust the flow.

*edit* Posting at the same time Dan. I type too slow

[luke frisbee]

you could put a "T" on the outlet with two ball valves on them and ...Oh wait I see someone ...two posted already...

[julia22]

Good idea guys!!! thanks, but could you suggest a new filter. I looked at Nexus 200. Would that accomodate the pump? It there another type of filter that is a little cheaper, but similar for with a backwash?

[jnorth]

The Nexus 200 would be a very nice filter for your size pond however your pump draws to much water. Check here and you can see the flow rate for a Nexus 200 http://www.mystickoi.com/SUBcategory...goryName=Nexus It is about 2600 gph and your pump operates at 1500-6000 gph. I'm not familar with your pump so I don't know if it has a low spped setting and a high speed but if the low is 1500 (too slow) and the high is 6000(too high) then you would need to tee the intake side of the pump or the output to do it (You can pull or push water through a Nexus).

[dick benbow]

Just another thought...most pumps you cannot restrict any input but up to half of the output without doing any damage, This would buy you time to
ad another filter, divert you flow etc....

[koiczar]

I currently have an old Cyprio 2500 on my quarantine system. It has a settlement chamber that is gravity fed. From the settlement chamber, I pick the water up with a 1/15th HP pump. The discharge from this pump is split, with ball valves on each line for flow control as suggested above. The reason for this is that the Cyprio 2500 can handle about 1 600 gallons per hour MAX. Your Sequence 6000 Primer is a 1/3HP pump which will easily pump 5000+ gph. It's really oversized for your system. Even with a bead filter, say an Ultima 6000, you could use a 1/4 hp pump and still be able to backwash it efficiently enough to do the job. After the water passes through the bead filter you could run part of it through your Cyprio and the rest simply back to your pond. Also, of note, I would run the U.V. light between the bead filter and the Cyprio as you will get a better contact time with the lamp with the slower water speed.

Mike

[Steve Nguyen]

I would keep the old filter and add the T as others suggested unless the old filter can't handle the current fish load. if you replace the old filter, the new filter will take some times to cycle thru and bad thing might happen to your fish during this period. you can add a new filter but then again you will need to add a T to divert some water to new filter. anyhow, as you can see, it's probably best to keep the old filter and add the T as others suggested. btw, adding the T will provide another benefit to your pond. the extra water go back to the pond now generate good current for the fish to exercise. a lot of ponds don't have this feature but it works out very well in my pond.

Quote: Originally Posted by julia22 Good idea guys!!! thanks, but could you suggest a new filter. I looked at Nexus 200. Would that accomodate the pump? It there another type of filter that is a little cheaper, but similar for with a backwash?

[Steve Nguyen]

Mike,

imo, there is no such thing as oversize pump for a koi pond. it really depends on how the system is designed or how the pump is being utilized.

Steve

Quote: Originally Posted by koiczar I currently have an old Cyprio 2500 on my quarantine system. It has a settlement chamber that is gravity fed. From the settlement chamber, I pick the water up with a 1/15th HP pump. The discharge from this pump is split, with ball valves on each line for flow control as suggested above. The reason for this is that the Cyprio 2500 can handle about 1 600 gallons per hour MAX. Your Sequence 6000 Primer is a 1/3HP pump which will easily pump 5000+ gph. It's really oversized for your system. Even with a bead filter, say an Ultima 6000, you could use a 1/4 hp pump and still be able to backwash it efficiently enough to do the job. After the water passes through the bead filter you could run part of it through your Cyprio and the rest simply back to your pond. Also, of note, I would run the U.V. light between the bead filter and the Cyprio as you will get a better contact time with the lamp with the slower water speed. Mike