will this pump be noisy?

i was wanting to use one of these water pumps to water vertical rockwool slabs 4 times a day for 10 to 15 mins at a time.

i wondered if they would be very noisy as i do not want to allert the neighbors with loud buzzing vibrations.

Well you can't really tell how big of a pump that is but I'm sure it doesn't matter. I use a 375 gph (gallon per hour) pump for my 14 site aero-cloner and it makes about as much noise as a small oscillating fan. You shouldn't need to worry about neighbors hearing your pump.