Confused about Plumbing Sizes

kaylajoy

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This seems like it should be a simple project to do, but all the different size standards are throwing me off. All the parts below were nominally 1/2 inch, but none of them fit the other. The outlet for the pump is a "1/2in pipe," but the outlet that come with it seems about the size of an airline tube, tiny.

IMG_20210509_215324.jpg


Are there adapters to get at least some these parts to fit together (these are from marine depot)

To explain what I'm doing, I'm trying to set up a hamburg-mattenfilter, but with no air driven pump.

There will be a square filter sponge dividing the tank, and the pump just needs to lift water over the sponge creating flow through the filter That's why I thought the U-shaped return pipe would be perfect for this. The flow for this type of filter has to be very slow, which is why the tiny pump.

HMF-filter-side-view.jpg


I'm just trying to build something like above with a power pump instead of an airlift tube. The reason being because the water splashing everywhere with the bubbles from an air pump is annoying.

This is probably not a typical project for here but I know there must be parts that will work for it, so thanks for looking.
 
hi,can use a barb adaptor 1/2" male to male the size you need from short piece of hose from pump.. :)
 

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