CarpeDiem 306 Posted December 10, 2022 Share Posted December 10, 2022 What do people do to sanitise their water tanks? Our tanks (2x200l) are built in part of the furniture structure. They are fibreglass, either polyester or epoxy and I was told they were oven cured. I put one of those USB endoscopy cameras into the tank a few years ago and it wasn't clean by any stretch of the imagination. It is full of baffles, so cutting it open and adding an inspection port for cleaning isn't a option. Our water was gross when we got the boat. So this is what we do now. Each year, about now. I remove the filters and fill the tanks and plumbing with 50ppm bleach and take it for a sail. 24hrs later, if the free chlorine is under 10ppm empty and repeat the above. (only happened the first time we did it) Then I give it three flushes with marina water and make sure the free cl is down to drinking levels. Install new filters and we're done for another year... I put the old filter back on when flushing the concentrate, cause I wouldn't want to kill the fanworm in Westhaven. Now that we have never had any problems with foul water, I am wondering if this is overkill and what others do for their tanks? Quote Link to post Share on other sites
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.