Home made pump.

I made my first home made pump today.

2” inside diameter ABS pipe with an orange test cap to seal it, with a connector and narrow gauge pipe to suck the air out with my mouth.

Verdict; I need a better seal at the connector because I have to suck air out every few seconds to maintain suction, but I was really surprised how much suction the device generates.

I’m pretty new to this but using a homemade pump doesn’t seem safe.

Are you worried about not being able to see your unit when you pump?

It’s only an experiment to see what works. ABS is easy to cut and glue.

I’m going to try clear polycarbonate next.

Should be easy to get a seal at the connector using some type of caulking or something

Gotcha. Then, in that case, it looks badass!

Thanks root!

It does look “industrial”.

Tried the pump while erect this morning for five minutes.

Holy shit!

A half hour later I’m still red and engorged.

Try it with warm water!

Sounds like you overdid the pressure.

what do you use at the base?

That’s next.

I’m not sure.

The pressure is from me sucking air our with my mouth.

How much pressure could that be?

Just the smoothed over edge of the cut tube.

I don’t think that the device creates that much vacuum to cause discomfort at the base.

I can easily pull -15 in hg by mouth, and -20 with a bit of struggle. I can hit about 5-8 hg with the first suck, and then little sucks get me the rest of the way. The short answer is a lot!