Re: Cleaning fresh water tank on my SM2K
Hi Dave. I’m familiar with this view! Last year, I opened up all of the ports, and found mold balls on the walls of the water tank. I flushed our tanks with bleach solution as described elsewhere, but this will not remove the adherent growth. You will need to mechanically clean the surfaces, which is a bit tedious. I did this by using a soft putty knife attached to the end of a broomstick or similar. I let everything sit in a bleach solution for 2 days, which likely helped to loosen a great deal of the residual material. Once removing all of the adherent material with the scraper, I repeated the process with a scrub brush attached on an extension.toggle quoted messageShow quoted text
I then sprayed water and used a portable pump with a long hose extension to suction out all of the particulate material. This was repeated numerous times until all debris was evacuated. Finally, I fully filled the tank again with a dilute bleach solution, let sit overnight, and then drained completely. One lide of the tank was kept accessible so that I could easily use the portable pump to drain the water quickly. (I used a high capacity Parmax puppy pump (50 gal / min) that I keep on board as an auxillary bilge pump if I needed to evacuate water from the cabin for any reason.
For simplicity, I simply wire it onto my gray water bilge pump switch and used that as a temporary means of supplying the 24V power for the pump.
Perhaps someone else out there has a better idea than what I felt I needed to do to clean the tanks completely…