This is disgusting.....but I think common

[TR25]

Last RV I bought, this was the fresh water tank. When I commented on the color, the previous owner's response was "we don't drink that."
Still disgusting--to me anyway. You wash your dishes in that. Shower with that. Brush your teeth with that. You're spreading fungus/mold through your water pump, lines and water heater. Heck, just having a biological warfare lab inside my RV is enough to gross me out.

Do you/is this common? Since then I've asked people and a lot don't drink from their 'fresh water tank', so I guess never checked it.
Someone could make a lot of money if they 'invented' a bottom, as in the underside of the tank, drain on fresh water tanks.
The problem is they are unicorns as much as I can tell, so there will always be 3/4 of an inch in the bottom of the tank...and that's a recipe for a fungus factory.

Half considering cutting a hole and putting in a hatch on top so at the end of the season or as part of routine maintenance, I can sponge out all of the water there, leaving no standing water.

Do you check yours?

 

[lostinfla]

We never use ours for drinking water. I usually sanitize it once or twice a year, depending on usage. Actually, we stay at campgrounds 99% of the time, so I usually just run off the campground's water (through two filters and water softener) and keep the tank at about 30-50% for use when on the road for toilets and such. We always use bottled water for drinking.

 

[Neemer]

We drink from ours all the time. I santize the complete system quarterly.

 

[lostinfla]

BTW, thanks for the reminder. I'm doing it now.

 

[DennisT]

We are full time.

Sanitize yearly, tank water is replaced monthly to keep it fresh. We use what is in the tank before the month is up rather than just drain.

Use it for everything - drinking, ice maker in fridge, etc.

No issues with the water.

We also have a three filter setup outside along with a water softener and the whole house filter.

 

[JBright11]

We never use ours for drinking water. I usually sanitize it once or twice a year, depending on usage. Actually, we stay at campgrounds 99% of the time, so I usually just run off the campground's water (through two filters and water softener) and keep the tank at about 30-50% for use when on the road for toilets and such. We always use bottled water for drinking.

The same process for us.

 

[Rollin Ollen]

We drink from ours all the time. I santize the complete system quarterly.

Same with us and we have multiple filters plus we do a bit of a test of the water before we fill.

 

[Trav_lr]

We use our tank water as we mostly dry camp/boondock. We have a two stage system with 0.05 micron and 0.02 micron filters. Both are changed every 6 months when we sanitize. Someday, I need to install a better tank drain.

 

[Kevin D Pem]

My rig has no holding tanks! I use a pickle barrel sitting outside the rig as a kind of cistern for My plumbing system.

That explains My answer to your concerns.

On the boat, the tanks had irregular bottoms,and I hatch on the top. I could use a pressure hose to spray the dirt out when a hose was available. But I never had that luxury available while cruising. Irregular bottoms made using a wet vacuum the answer whenever I put it on the hard.

You could put a standing pipe on one end of your tank that has a sarated end so you could park unlevel, and vacuum the last remaining water out before storing. Caution! Inlet pipe should be open if you do such a thing.

Always use potable water, and always keep All ports closed. That will keep the organisms out of the tanks. That will not stop sediment in the bottom of the tank.