Crazy Idea!

[cyberwollf]

Ok, so when im bored ideas randomly come to me I'm usually trying to think of new (and cheaper) ways to do things.  Ok follow me here:

i was thinking about my kalk dripping and how hard it was to adjust to get a constant drip rate.. after a few hours it clogs up a little a guess and its much slower.  But, this idea will work for dosing everything else too.

ok so its based on Infrared.  Alot of machinery works by having opto sensors.  It uses infrared leds to emit light and a sensor to receive it.  that way it can tell when something gets in the way.

So the additive drips down a tube with a DIY opto sensor to count the drips, and thats feedback to the controller that has a servo on an air valve.  The additive is stored in an airtight container and gravity dripped into the tank. as air is let in, additive comes out. 

and I better not get any links with this already been done! 

So metered dosing with no pumps... just an idea

[HUNGER]

ya thats sounds crazy and sounds like it could work 2

[Midwest Express]

Nice!  Let's see this happen!

[Wall_Tank]

I would think a peristaltic dosing pump is much more reliable than an air valve.   

[cyberwollf]

I would think a peristaltic dosing pump is much more reliable than an air valve.   

not if its feedback controlled  one of those cheap airvalves, hook up a servo to it. and its alot cheaper... Dont worry Paul you know it will be a few years before i build it LOL

[TechGuy]

Your dosing container has to be rigid, or gravity will do its work, and crush your container. Just ask me how I know