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**Squeeky** · 05-15-2012, 07:09 PM

justcopen,

Biggest issue would be the lack of threaded fittings, IMO. As for the GreatBrewEh pump, their stainless version is expected in 2 weeks. These are from Topsflo pumps in China. I did contact that directly about a group buy but they require 200+ units purchased, however they are only $26 a piece.

wolfman_48442 · 05-15-2012, 08:13 PM

Quote:

Originally Posted by justcopen

I have anther question for you Wolfman. What pumps do you have and what size motor is on it? or have many amps does it take to run?

I have a pair of the brass connector Topsflo pumps I'm playing with.
I haven't actually measured them, but they are rated for 15 watts @ 12VDC.
So max draw should be 1.25A each.

justcopen · 09-21-2012, 03:05 PM

no sure if you guy are still watching this one but I was woundering how your builds are going?

shushikiary · 12-16-2012, 03:16 AM

Wow... a post about code I wrote....

I wrote and currently use the PWM pump control on the steam output. I also wrote the pulsed input pump control for fly sparge, which I also use.

If you PWM control a pump for fly sparge I HIGHLY suggest you use a peristaltic and not a centrifugal pump, as the flow rate is linear with RPM, makes controlling it much easier.