How Often Should You Change Water Pump Impeller?

Author : Efrain E. Silva

Ah yes. We come to a fun part I like to blow off steam here in writing about : water pump impellers, once more, but touching on the topic I mentioned briefly in 1 or 2 of my other blogs which you ought to check out when time allows —- that of how often to change the water pump impeller. And yes, I know that I have answered this in other posts, but I did so very briefly and in this one, I would like to go even further into the topic with you and even just re - stress the simple point for emphasis ( you know that the matter times you hear or read something, the more likely your cognitive brain is to kick in, right? And the more likely you will recall it, whatever thing you have reviewed ) . Emphasis is key here. And with that, off we go to a great new blog post!

I have said to change this very special, very important boat part about every 200 or 300 hours, after using the boat that long, in general — give or take. And after a few impeller changes, you will begin to notice for yourself the signs that it may be soon time to change it again —- it all just comes with practice. But what I have not told you yet is that you can also just choose to change it once a year, so a basic annual change or check - up, if you prefer to track your maintenance that way instead. Because, let us face it, some people do not use their boats that much and may never get to 200 - 300 hours, but the impeller can still wear out even when it is not in active use. So a check - up every year, just like a regular doctor’s physical, if you want to remember it that way, will not hurt at all.

Now the problem with ignoring this advice and NOT ever changing, or even checking, the impeller, is that you can get quick over - heating issues with your motor. And the motor can be one of the most expensive and hard parts to replace in the whole boat, without it, you’d be basically stuck at home ( kind of how all of us are now during the COVID - 19 lockdowns, yeah ) flipping TV channels and saying no to your boating passion for another weekend, until you can afford to go and order that part and have it installed. Decisions, decisions. Now why do I say that not changing it causes over - heating in some instances? Well, due to the fact that the impeller’s whole job, as I’ve talked about before, too, is to pump out some cooling…..aka, cool water, and right to the engine that needs it, for working so hard to keep all operations running.

And when it is not changed, it can die out, over time. It then doesn’t cool. That causes heating, simply.