Greetings all...
Background:
I've been lurking and doing a lot of Googling planning a setup. One thing I've noticed is the typical selection of pumps tends to not leave much room for decorative plumbing or 20 m loops
. Looking at the P/Q curves I see why everyone is counting bends and going for short tubes, to get the most out of the pump you have to, it's truly an art - most of the pumps will drop below my target 6 lpm flow rate on a short loop with just one restrictive CPU block!
Ok, that aside, on to the question: can I be more decorative (or even just sloppy
) with my plumbing if I am willing to shell out the clams for a closed impellor (high head) Iwaki-Walchem pump that will still push 6 lpm through 6+ m headloss?
I've seen the arguments about added pump heat, but this is a magnet drive pump estimated to only add about 35W heat to the loop, and I have the heat exchanger capacity to handle that
. I've also seen the arguments about increased pressure and leaks or popped fittings, but the max psi we're talking about is still very reasonable, and I believe in clamps and sweated fittings. As for the size of the pump (darn near a foot long
), I am not concerned there, I have plenty of room
.
Are there any other reasons not to get such a pump? :shrug: