Re: Cleaning fresh water tank on my SM2K

James Alton

Dave and All,

   I wanted to add a caution and mention that Chlorine can apparently cause corrosion issues with stainless.  Since our stainless keel bolts, nuts and washers are located in the bottom of our water tanks, I am pretty leery about putting a bleach solution, especially a strong one in my water tank.  The soft scrub that I used did contain bleach but was rinsed away as the tank was cleaned to reduce the exposure.  If anyone with a more expert knowledge of the corrosion risks from using Chlorine in our tanks could comment, that would be helpful I think.

SV Sueno
Maramu #220

On Nov 9, 2020, at 7:46 AM, Philippe Belloir <pbelloir@...> wrote:

Sorry it’s in french, the file give all the recommendations for cleaning and disinfecting containers and pipes
Fair winds,
De : [] De la part de David Kurtz via
Envoyé : vendredi 6 novembre 2020 16:07
À :
Objet : [AmelYachtOwners] Cleaning fresh water tank on my SM2K
Good morning all!  I tried cleaning my fresh water tank using Bill’s alternate method (fill with bleach solution, let sit for 48 hours, drain, flush, etc.) and did not get the desired results.  The attached photo shows what I am dealing with.  Seems to be a couple varieties of mold that was not killed off by the bleach solution.  Now that I am opening up all three access ports I want to clean it with something that works, but doesn’t poison my whole family 😳.  What have some of you used for cleaning?<image001.jpg>
Dave Kurtz
SM2 #380
S/V Celtic Cross

Detroit, Michigan


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