Originally Posted by sailor0516
Thanks a lot for the info, I had talked a West Marine employee and he did not know of any commercial made product, said something like a toilet flange would work. I guess he was part time..
I like to scrub down the interior
at least once a year and vaccum out any residue, keeps the water fresh tasting.
West Marine sells those plates. I bought one there to install in my holding tank
for a cleanout.
I don't understand why you would need to clean a potable water tank unless you accidentally put fuel
or sewage in it. My boat was built in 2000 and has no cleanouts in the potable water tanks and the water tastes just fine.
Homes with well water have an accumulator tank that's never cleaned. Homes and buildings have water sitting in pipes and they are never cleaned.
If there's a problem with your potable water, there's a "shock" procedure that involves adding a significant amount (a cup or two if I remember correctly) of chlorine bleach to the water system, filling it with clean water, running water through all the taps until you smell bleach, letting it sit for a couple hours, and then draining and rinsing the system. You can probably find the exact procedure with a web search but that's basically it.
The key to a good potable water system is pretty simple -
1) Only fill it with clean water that you would drink. If the water is from a well and not treated, add a small amount of chlorine bleach to treat it yourself. I used to use an ounce or less for a twenty gallon tank when I had well water. If you can taste chlorine, you're using too much.
2) Fill your tanks with a dedicated, drinking water
approved hose that's used for nothing else. Don't wash your boat with it or leave it lying on the dock
for someone to use it to rinse their holding tank
. Keep it in a safe, secure place. Let the water run through the pipes and hose for a few minutes before filling your tank.
Do the chlorine bleach thing once or twice, then do what I posted and you shouldn't ever need to access the inside of your potable water tanks.