Inline water filter?

[MPDesignAudi]

Hey guys,
I have just flushed my heater core for the nth time with lots of gunk coming out.

I am wondering if anyone has ever added an inline water filter to catch and remove the sediment?

Is this a bad idea for some reason? I suspect it is, but I cannot think of the real issues.

Thank you!

[erikj]

I don't recall what the flow rate is for the coolant cycling through the block, but you would need to make sure it is not restrictive. If the pump can't pump through the filter, or if it clogs up, you're going to either pop a seal somewhere (although orings should be able to handle 1000+ psi) or coolant will not circulate.

I suppose you could add one, but unless you add it at the top of the motor or add shutoff valves, you're still going to have to drain the coolant to clean it.

And it's already pretty easy to drain, flush, and refill the coolant system.

[old guy]

I am wondering if anyone has ever added an inline water filter to catch and remove the sediment?

Is this a bad idea for some reason? I suspect it is, but I cannot think of the real issues.

You could try adding a filter to the heater core supply line. Best possible outcome is that it keeps your heater core clean and you maintain heat all winter.

Worst possible outcome is that it restricts too much of the flow through the heater core and your heat sucks. Or it clogs up quickly and your heat sucks.

Either way it will have no effect on how well the block maintains temperature nor will it restrict the coolant circulation through anything other than the heater core.

[erikj]

You could try adding a filter to the heater core supply line.

Ahh, I completely didn't read the "heater core only" part! Yeah, that would work.

[jacobsen]

semi trucks have several in line filters for the coolant. Well any large diesel motor does. They help catch contaminants and when the coolant breaks down the silica separates from the solution and that coats the internal galleries and heater core. So the filters ultimately fill up with a silica powder. Just like any other car. If you haven't seen my spectacular muriatic acid cure you might search it up. But my recommendation to everyone is to continuously flush the coolant a couple times a week for a month. Then run acid back and forth through the heater core into a bucket. If you just keep flushing eventually you'll come to the end of the road it took a long time for me. But now even my reservoir is spotless for the past year. I thought about hooking up a filter to the coolant as well. But I think that's overkill. Drain and refill continuously.

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[Charles.waite]

From personal experience I've never had major issues with coolant introducing much (if any) sediment into my cooling system. My best guess isn't a defect in the system, but a leak or something that is allowing impurities into the system. Or you're using tap water when you mix the G12...

My point being, I don't think the factory system is flawed, but I DO think there is something else contributing to your dirty cooling system.