3/8" PVC fittings?

[intarsiabox]

I looked up the specs and it said that the diameter of the out take is 1/2" but the nipple out is 3/8". I don't have one of these pumps myself but can you just unscrew the 3/8" nipple from the 1/2" pump fitting and then just use standard 1/2" plumbing parts? Are you trying to fit tubing or pipe to the discharge of the pump? I would think 1/2" tubing with 1/16" wall thickness would fit the nipple that comes with it.

[shrimpchips]

Hmm, I can't remember how I'm doing this (I'm away from my tank), but I think I just used spaflex PVC (.5") and slipped it over the barbed fitting that came with the eheim. Fits perfectly and has been running for 10 months now.

[Binare]

Shrimpchips is right. There is no such thing as 3/8" plumbing. 1/2" ID hose fits the 1/2" OD barbed fittings they come with. My 1250 and a lot of other pumps have been running just fine with no leaks using the irrigation fittings for years, they are identical pretty much.

[fishay]

*UPDATE*


Went to an irrigation supply store where I was able to get a 3/4" to 3/8" (MIPT x FIPT) PVC threaded reducer fitting. I screwed this over the existing nipple and then used another reducer fitting to get up to 1" and then simply plumbed into my existing return line. I could have done like some of you said and just slipped the clear vinyl tubing over the nipple but I wanted to hard plumb it in to my existing 1" line so an adapter fitting was necessary.