Water Pump Output
I have a Shurflo 4008-101 water pump in my TT. It's rated at 3 gpm. It puts out decent pressure--like a lot of things you'd take more if given the choice. I realize the 3 gpm rating is probably wit...
Forum Discussion
otrfun wrote:
I have a Shurflo 4008-101 water pump in my TT. It's rated at 3 gpm. It puts out decent pressure--like a lot of things you'd take more if given the choice. I realize the 3 gpm rating is probably with ideal voltage and flow rate measured right at the pump's output nozzle (and water source next to the input). Anyhow, I took the shower head off and did a quick test with both hot & cold both completely open. Got 1.5 gallons in one minute. About 1.25 with the shower head on. Just curious if anyone else has tested their water pump's realworld flow rate?
look carefully at the specs. In most cases the rated flow is with the pump having the water source at the inlet (not having to suck water from the tank) and the outlet unrestricted. NOT a condition you'll ever likely experience in the trailer. So having to pump from a few feet below the pump inlet and then pumping through a line with some restriction reduces the output, often considerably.
In other words you can have lots of flow, but no pressure filling a bucket) . or good pressure and reduced flow (taking a shower)
