Need help with plumbing difficult ehiem pump?

[10" Red Devil]

Was wondering if anyone else has a ehiem external hobby pump. I have the 1250 and it has a 3/8" return nozzle on it how do I plumb this to my main tank? I want to get a hole drilled in my main tank for it, but not sure what size I should make the hole for the return in the tank? Thanks for your input in advance!

 

[Herefishyfishy]

Are you sure you want to go to the effort of hard plumbing for just a 3/8 line. A flexible return line to a hanging elbow should be just as good. If you want to go with bulkheads, perhaps going to a larger size which will allow later pump upgrades.

 

[DonW]

Are talking about installing a bulkhead? Your eheim should have either 1/2 or 5/8 od fittings.

Don

 

[10" Red Devil]

Are talking about installing a bulkhead? Your eheim should have either 1/2 or 5/8 od fittings.

Don

Well for the return nozzle it says that it is 3/8" it points to the thread of the hose adapter it also talks about the fitting for the input hose adapter which it says is 1/2" pointing to the threading.

 

[10" Red Devil]

Are you sure you want to go to the effort of hard plumbing for just a 3/8 line. A flexible return line to a hanging elbow should be just as good. If you want to go with bulkheads, perhaps going to a larger size which will allow later pump upgrades.

Good point, I may just end up doing this. Do they make black tubing for this diameter? One of the reasons I want to hard plumb everything is to block out the light in the line to reduce the chance of algae building up or growing in the lines. Thanks.

 

[DonW]

Well for the return nozzle it says that it is 3/8" it points to the thread of the hose adapter it also talks about the fitting for the input hose adapter which it says is 1/2" pointing to the threading.

Thats ID you need back 1/2" hose from home depot. It should actually be 13mm so you may need to out the hose end in hot water so it will stretch over.

Don