I've heard people argue that a larger intake is better, but I have yet to see any proof of this. The argument involves having a lower pressure at the inlet, which is favorable to the pump.
Maybe myv65 has some input on this?
Jtroutma, your logic is interesting! Maybe you could expand a bit on it? I completely agree with #1. Myv65 ran some pressure measurements, and observed a negative pressure point, at the pump inlet. To clarify, the pressure, relative to atmospheric pressure is higher in the tube at the pump outlet, but slightly lower at the inlet. This would most definitely be a factor in this tubing collapse.
|