Water Pump Theory

&gt; This is similar to sucking on a straw<p>Totally random and off topic, but since it took me 40 years to learn the only 100% effective way to get rid of hiccups, this is it.<p>You need to create an extended period of negative pressure in your oesophagus, to de-activate the vagus nerve, or whatever it&#x27;s called. The reliable way to do this is to have a bottle of water and a straw. Plug your ears if possible - helps but it&#x27;s not strictly necessary. Crimp the straw somewhat with your teeth. Now spend 20 or 30 seconds slowly, but with a high pressure, sucking water through that straw and swallowing it. Remember, your goal is negative pressure in the oesophagus for an extended period.<p>It is the only reliable method and for some reason is almost completely unknown. Well, now you know!<p>&lt;&#x2F;tangent&gt;

Strange that Honda would put this out. Automotive water pumps are usually not vacuum pumps. They&#x27;re down at the bottom of the cooling system pushing coolant, not up top trying to make a vacuum.<p>This is, inevitably, covered in one of those Jam Handy movies made for Chevrolet. &quot;Water Boy&quot;, 1936.[1]<p>[1] <a href="https:&#x2F;&#x2F;archive.org&#x2F;details&#x2F;0799_Water_Boy_08_01_01_00" rel="nofollow">https:&#x2F;&#x2F;archive.org&#x2F;details&#x2F;0799_Water_Boy_08_01_01_00</a>

Tangent: seeing the title and the Honda url, I was certain this was going to be related to the engine air pump model[1]. Since engines are limited by the amount of air they can push through, you then think of the engine as an air pump (and try to optimize around that). Although this model is fairly commonly used in the automotive industry, details online are surpassingly sparse. Taylor[2] has a bunch of details on it.<p>[1] <a href="https:&#x2F;&#x2F;www.roadandtrack.com&#x2F;car-culture&#x2F;news&#x2F;a29588&#x2F;how-internal-combustion-engines-work&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.roadandtrack.com&#x2F;car-culture&#x2F;news&#x2F;a29588&#x2F;how-int...</a><p>[2] <a href="https:&#x2F;&#x2F;direct.mit.edu&#x2F;books&#x2F;book&#x2F;4840&#x2F;Internal-Combustion-Engine-in-Theory-and" rel="nofollow">https:&#x2F;&#x2F;direct.mit.edu&#x2F;books&#x2F;book&#x2F;4840&#x2F;Internal-Combustion-E...</a>

Well (as opposed to all the HN posts about Rust and GoLang), this is a topic I actually know a smidgen about while running a solar water pump venture out of East Africa. AMA.

I&#x27;m in the process of researching to replace my swimming pool pump. My current one nominally runs at 2850rpm and has a nominal power consumption of 1650W, but I think I measured it at around 1100W. I imagine the maximum load is when starting and also if it has to &quot;suck&quot; with a large head. My pump is about 0.5m above the pool level. It is a 14 year old pump that is obviously just a single phase (240V 50Hz) AC induction motor.<p>The replacements are permanent magnet DC motor driven, with a variable speed (presumably frequency and voltage) drive can control speed from 600 to 2850rpm.<p>After priming at full speed for a few minutes (to purge air) it looks like you can then run it at say 1300 to 1800 rpm and save a coal truck worth of power. (I do have solar PV panels on my roof, but I am hoping maybe 1000kWh or more a year saving ).

All of the priming and vacuum issues they describe is why I swear by submersible pumps. I use a pair of deep well pumps to move water up 70m, each doing a 35m lift, with a relay tank halfway.

Why there is no unit conversion with a flick of a button yet? It clearly looks that it has been translated from SI unit (e.g 1 bar or 14.7psi pressure at sea level)

This was fun to read. Anyone know where I might find the relevant equations&#x2F;math?

having small amount of solid sugar, let it mix with saliva, let it go down on throat, and then drink some water -- this has never ever ever failed me!