Plumbing External Pump

[riot]

Hi all.

I intend to set up my eheim 1260 as an external pump but do not wish to drill / remove my current sump.

Any solutions to this problem? I have seen some reefers hooking up a siphon PVC U tube setup, but are there any potential issues with this? Ie will siphon start after pump is switched off/ on , etc.

Thanks for any advice.

[iewnehz]

for my case..the siphon doesn't got cut off when the pump is on and off again

hope u can see clearly

[typrobin]

my way of doing it...to reduce head loss...

[moxa]

Hi Bro Reefer,

I intend to use Ehiem 1250 for my return pump for sump.

I would like to ask is using a hose o.k compare to making a PVC from the output to the tank.

mine is just a 2 ft main tank and the sump is also a 2ft.

Many thanks.

Moxa

[CalciumReef]

1250 is too weak IMO.You should use at least a 1260/1262

[Cookiemunster]

guys actually i find the eheim 1260 very weak....I was using 1262 and found it unacceptable. Too weak already. Mine is a 4ft tank. Flow rate in sump was very slow.

I am wondering about the Resun MD 55. Any one using? Is it very noisy? The piping method would have to be the same.

Riot I believe the potential hazard is only when there is airlock....ie during poweroff (power failure), air gets sucked into the pump from the top during reverse flow. Once theres air in the hose between the hose in the tank and the pump suction point, the syphon will break and the pump will be grinding air. I only worry it will tend to overheat. Hence its always dangerous to set it up this way.

However there is a solution and that is to use a antiflowback valve. It costs about $40 for a 1inch size. This will prevent backflow of air into the pump and cut the syphon during any power failure. These valves can be easily obtained from Hai Cheong plastics. Place the valve between the pump output to the top tank....anywhere inbetween will do.

[AlfaRomeo]

CM, I am running 2 x md55 and its relatively quiet when compared to the other china branded pumps but its not as silent as the eheims. IF you wanna see/hear them in action, feel free to drop by

[planetg]

i'm running iwaki and resund md55 side by side now.

for those guys who feel md55 is quiet. give the iwaki a go. it's near silent compared to the resun.

resun has got this irritating hum probably due to the fan.

[AlfaRomeo]

planetg, i have always heard that the iwaki is noisier than the resun as it has a bigger fan... strange that you are saying the opposite. needs further investigation

[YzF]

Can anyone show pics on how to connect the md55 to the sump and output piping? Dun know how to connect. My sump got no holes too..

[alanseah]

use red dragon la... save elect bill too..

[Eric]

use red dragon la... save elect bill too..

The rich always get richer..........hehehe

[riot]

thanks cookie

for the price of the valve I can get a new sump with fittings for the external.

[Cookiemunster]

thanks cookie

for the price of the valve I can get a new sump with fittings for the external.

Hahaha bro,

yes if its not too inconvenient, I strongly recommend you redo a sump with drilled side outlets. Remember to place a ball valve to shut it off so that removing of the pump for maintenance purposes will not be a nightmare and will not involve you having to wear a snorkel or own a OSIM jet cleaner.

Thanks for the feedback Alpha and planetg.......planetg pls pm me where to get cheap iwaki. Need one for my beckett project.

[riot]

thanks for the advice guys.

Now the next problem is how I plumb in my 1260? I dril lin a hole, install a bulkhead, put in a valve, then how do I connecxt that section to the intake of the Eheim? Is it by hose (is there a hose nozzel for the 1260 intake? If yes, whats the size?)

If nayone can help, that will be great. Putting in my sump order soon.