Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
You can stand next to the sink and pump the water into the sink and out the drain. If your tank has an inspection port you can syphon the water out or use a small pump attached to a drill. If you have an electric water pump just turn it on and empty the tank. If the water is very old you might want to treat the tank before using it. 1/2 cup of bleach to a full tank of water. Let stand for 4 hours or overnight. Drain again flush tank out once or twice and re fill with fresh water. If you do treat the tank be sure to pump water through to the sink so it treats the water lines as well. My personal preferance is to take bottled water for drinking. On long trips I freez the water containers and use them in the ice box and keep a couple more out for drinking. I use the tank water for washing or to put some through the head when leaving the boat.
I removed my tank to clean it - the hoses needed to be replaced anyway, so once I got those off, lifting the tank out was a breeze. There was some nasty green stuff in the upper right corner that I swear growled at me when I swished the tank with a bleach solution. Between that and a modified baby bottle brush (extendo handle using a wire coat hanger and some duct tape), I'd now feel comfortable drinking the water out of it. Reinstalled it using some new hose and double clamps. Bob's your uncle.
I open the inspection port and vacuum the water out with my shop vac. After sitting dry all Winter I'll put some water and bleach in the system and let it sit for a day or two. Rinse and use.
Ours had so much gunk in it that we installed an inspection plate in the top (plus a 2nd one in the board that covers the tank.) Ever consider a wet/dry vac to remove the bulk of what's in there?
When I irst got the boat (I am the third owner) I cleaned the tank first by pouring in a small amount of Clorox into a nearly full tank of water (no more than a 10% solution needed, and even that is strong). I have a fitting for the end of the bilge pump hose connecting to another short piece of garden hose, which goes into the water tank. Then I just use the bilge pump to pump it out. Much faster than using the flipper pump at the sink. I then rinsed the tank a couple of times. IT has stayed quite clean for a couple of years.
The water hose from the deck fill was rather cruddy, so I removed that and cleaned in a similar way with a Clorox solution.
Be careful because Clorox is somewhat corrosive to some metals so be sure to rinse well.
When I irst got the boat (I am the third owner) I cleaned the tank first by pouring in a small amount of Clorox into a nearly full tank of water (no more than a 10% solution needed, and even that is strong). I have a fitting for the end of the bilge pump hose connecting to another short piece of garden hose, which goes into the water tank. Then I just use the bilge pump to pump it out. Much faster than using the flipper pump at the sink. I then rinsed the tank a couple of times. IT has stayed quite clean for a couple of years.
The water hose from the deck fill was rather cruddy, so I removed that and cleaned in a similar way with a Clorox solution.
Be careful because Clorox is somewhat corrosive to some metals so be sure to rinse well.
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ. The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.