SmithyA
Active Member
I run a single tier fully electric 3V HERMS system with two Keg King MKII pumps to recirculate the HLT water and the wort through a 1/2" stainless steel coil mounted in the HLT.
One thing I've noticed is the significant delay between the HLT temp and MT temp on my PIDs when I'm ramping up temps. I've conducted a lot of research and have insulated my kettles, increased the size of my coil (now 15m), bought Auber PIDs and temp probes (in case of inaccuracy/delay etc) and have identified a possible issue as the flow rate of the pumps.
The pumps specifications state they're capable of 19L/min however when I stuck a 5L jug in the mash tun when it was circulating I timed how long it took to fill it to 5L at 1 minute 13 seconds.
What could be contributing to the decline in flow rate? I recently read an article where it was claimed camlocks have better flow rate over the quick disconnects I have installed, however that's some expense simply for a test, unless anyone can confirm the improvement? Could the system have issues with not being fully primed? I wait until fluid flows out of the output hose and then connect it before turning the pump on. No air bubbles come out.
I tested the pump directly into the 5L jug (remove distance and priming variables) and it filled to 5L in 27 seconds. While that's a huge improvement, it's still nearly half the performance these pumps claim.
Any thoughts or experiences with this?
Cheers,
Adrian
One thing I've noticed is the significant delay between the HLT temp and MT temp on my PIDs when I'm ramping up temps. I've conducted a lot of research and have insulated my kettles, increased the size of my coil (now 15m), bought Auber PIDs and temp probes (in case of inaccuracy/delay etc) and have identified a possible issue as the flow rate of the pumps.
The pumps specifications state they're capable of 19L/min however when I stuck a 5L jug in the mash tun when it was circulating I timed how long it took to fill it to 5L at 1 minute 13 seconds.
What could be contributing to the decline in flow rate? I recently read an article where it was claimed camlocks have better flow rate over the quick disconnects I have installed, however that's some expense simply for a test, unless anyone can confirm the improvement? Could the system have issues with not being fully primed? I wait until fluid flows out of the output hose and then connect it before turning the pump on. No air bubbles come out.
I tested the pump directly into the 5L jug (remove distance and priming variables) and it filled to 5L in 27 seconds. While that's a huge improvement, it's still nearly half the performance these pumps claim.
Any thoughts or experiences with this?
Cheers,
Adrian