a little gem
 

don't know if this has been linked before. I've never seen one with an inline gage that reads in gph.

http://www.petsolutions.com/cgi-bin/...s?l=42&g=10408

NICE!!! This is quite a find. would the fact that its 3/4 inch messup the accuracy for 1/2inch setups too much?

Only up to 90 GPH? Hrm ... pretty sweet nonetheless.

i didn't even notice that. Well that kind of sucks but it is still pretty cool. I wonder if some math wizard type people could figure out how to get it to accuratly read in 1/2. It should then translate to higher gph? For instance if you used an adapter to change just that part of the system to 3/4 inch and were using 1/2 and got a reading or 88 that acutally equates to 120gph @ 1/2. Don't know if that would really work. Any thoughts?

If it is a paddle-wheel tyoe (looks to be) then you won't need numbers bigger than 90GPH. Big restriction on flow rate...

You don't do a conversion. It doesn't matter what the width of the pipe is, this measures the volume passing through it. The volume passing through all areas of a system whether 1/2, 3/4, or 15" are going to be the same ... it just will appear that the water is moving slower in areas. Think of a fast stream that gets to a wide spot. The water slows down, but the volume stays the same. This happens here as well, since this is measuring the volume that passes per hour. Put three of these in parallel and you could measure up to 4.5 GPM speeds. *snickers*

http://www.oscarent.com/ is the parent company.

http://www.mops.on.ca/cgi-bin/SoftCa...html?E+scstore

Here is another place to purchase it, the other place doesn't carry it anymore. I sent the manufacturer an email asking if they have other models.

No idea how expensive these are:
http://www.sparlinginstruments.com/eggdelta.htm

but they look damned good. I just called a supplier in the city here and if they arent too expensive they should be very good...

No moving parts eh?. that does look sweet!. I wonder if the 1/2" is external or internal?, if ext' you could always use the 1" one and stretch your tube! :eek: , well I would! :D ...

Please, please!, PLEASE!! let us know how it pans out Mo :dome: ...

sweet comes at a price of $350 dollars for the blind model with a pulsing signal that can be connected to the mb, and as high as 900 dollars for the one with the digital guage on it:P PRICEY!!!

F*ck d00d, I think I'll just pay my rent instead.

(500!)

LOL. I dont blame you.... Ive spent all afternoon calling all the pneumatic companies in the city and the best deals Ive found on these electronic flowmeters was about 300 dollars canadian (10 cents US?:P )

Anyways, unlike waterblocks and pumps etc... a flow meter is probably the one thing that you will never eve r have to replace, and having one that accurate could really help in fine tuning one's system...

Im telling myself this can be a good thing but my wallet aint agreeing!!

http://www.flowresearch.com/articles...0I%202_014.PDF

This might be a good read.

From the article:

"Low flowrates present a problem for vortex flow meters because they generate vortices irregularly under low flow conditions."

Highly accurate flowmeters are notoriously expensive, and low-accuracy ones won't be much help for flow rates this low.

I'm sure there's a good one out there somewhere, though.

Alchemy

I would also question the wisdom of buying a $300 flowmeter for just adding into a system to know flow rates. For around $400 you can get a Promethia, right? Or if straight water is your thing, just pick up a positive displacement pump on ebay and you should be able to know your flow rate from the fact that they stay more or less constant over a wide range of restriction.

If you DO want a flowmeter, and don't mind the paddle wheel types, just check out ebay or labx for used ones. $30-100 instead of $300 and up (way up).

pH, you missed the big picture here: he's Canadian. That means that for us that flowmeter runs less than $100 USD, and for him, a prometia runs well over $1K. The joys of being a Canuck, eh?

I'll sell you a 5Gallon Bucket for $300!! (not Canadian though!!!, it was an expensive bucket :evilaugh: )...

Is there a formula you could use/make to work out flowrate in a closed loop compared to results from a 'fill your bucket' test?, or an educated guess of the percentage increase?(according to head?), cause the flow would be different when in a push/pull closedloop, than when in a push only one would'nt it?. the push/pull negates the head (or some?) does'nt it?...

You aren't going to find a good magnetic flowmeter new for $300 CAD. I assumed the price was in USD because that is a pretty typical entry level price for magnetic type metters.

I am well aware of the exchange rate. Lousy Canucks pay me in the worthless stuff.

Very dependant on the company. Entry level are 300-400 canadian. And ofcourse they rise. The pricing depends heavily on the size of the reseller in the province.

anyways. Price makes it very unattractive. As for the Prometia :drool: that runs about $900 CAD now with the tower. I definitely wont be going that route till Im much more comfortable with pure watercooling and maximise its benefits within my system.