Hi all -
I've tried searching the
forums for this, I couldn't find anything that seemed to match my situation. I've recently purchased a sailboat about a month ago, and my freshwater
pump seems to be acting oddly. I have a Shurflow Aqua King II. This week it started sounding differently when it was running.
It used to be a very solid bang-bang sound when running
water. Basically it'd bring the pressure to 50 psig in the system, stop running, the pressure would drop to 30 psig, the
pump would turn on again and repeat.
Now when it runs it seems to rumble up to 10 psig, hold there for a second, then slowly rumble up to 30 psig and hold there. No bang bang anymore. It seems to be running continuously with a much quieter sound at 30 psig. This would seem like an improvement, but it's the change that's weird to me. The pump delivers
water just fine and only runs when I use it.
I'm not sure which operation mode is normal. The bang bang seems more in line with previous sailboat pumps I've used, although the latter is quieter.
What could cause the change and is it a sign of a failing pump? I'll reach out to the manufacturer, but wanted to get insights from you fine people here.
Thank you!