silent, low noise - jeez, we need to put numbers on these things
silent is easy to understand (inaudable),
what is 'low' (and, more importantly, at what level of background noise) ?
N.B. there are big low noise pumps
-> if a big pump meets the 'low noise threshold', then a big pump and fat hose CAN be a very effective low noise solution
- so the answer to your persistent tubing question lies with the initial pump selection
low and high flow rate - same problem, except few know the system flow rate
suggest avoiding the term flow rate
re wbs: 1 in series plus 2 in parallel - works fine
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