Pump Flojet Quad 4406?
Thinking to get this 4-chamber pump: http://www.depcopump.com/datasheets/flojet/4406-Series_IOM_Manual.pdf. The word is, is it quiet because has 4 chambers. My current 3-chambers Shurflo is louder...
Forum Discussion
time2roll wrote:
IMO all closed water systems should have an expansion tank.
No idea why that (or any) pump would not work with an expansion tank.
I understand what your saying but there's nothing to smooth out so the tank doesn't help. Bypass pumps supply water just as smooth as the tap in your house (or they're supposed to when working right).
An expansion tank would interfere with with the flow of these kinds of pumps.
The same was true of my Sensor 5.7. It varies speed to supply a perfect flow. I already had an accumulator tank so I ran it with it. All it did was make the pump run longer than needed and then flow would surge when pressure dropped and the pump was called for. There was no benefit at all so I removed it and it works perfect without it.
I do have a good use for an expansion tank though. I had a 1 gallon Exp. tank and would charge it up with water pressure before going to bed. That way I could shut the pump off (which was under our bed) and the water in the pressurized tank would quietly supply water for family members flushing the toilet during the night. It was enough for 15 to 17 flushes!
