I've heard of using rifle cleaning kits or wood dowels too.
Joel

On Wed, Jan 13, 2021 at 9:33 AM Della Barba, Joe via CnC-List <
cnc-list@cnc-list.com> wrote:

> If you take the end caps off the heat exchanger, you can see the tubes the
> raw water flows through. Flushing and replacing the coolant does not touch
> the inside of these tubes. To truly clean out the heat exchanger you need
> to remove these caps. I stuck mine in a tub of hot water and detergent,
> which worked OK for mild cleaning. I could seen into the tubes and there
> was nothing but a little slime. More robust measures are needed to remove
> scale and barnacles.
>
> Back in the day it was common to get car radiators boiled out at a
> radiator shop. If any shops are around that still do this that will clean a
> heat exchanger too.
>
>
>
> Joe
>
> Coquina
> Thanks to all of the subscribers that contributed to the list to help with
> the costs involved.  If you want to show your support to the list - use
> PayPal to send contribution --   https://www.paypal.me/stumurray  Thanks
> - Stu



-- 
Joel
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

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