Draining old fresh water...

[lunalupis]

Our Winnebago, as we have discovered, has 3/4 full fresh water tanks, but it is some pretty old, stale water. Draining it the conventional way via the pump doesn't seem to work, as we have discovered a leak at the regulator on the water heater that only spot water out when the pump is running. I really want to get that old stale water out! Is there an actual drain plug for the fresh water tanks that I just cannot find? This would be perfect until I get the leak fixed! Than you!

[Romer1]

What year and model? There are drain valves for the tank but need to know what you have.

[lunalupis]

I found them!!! Than you, though! There is some eyelet pull tabs on either side of the pump that just drops h2o directly down into the ground!

[lunalupis]

Oh.. 88 Winnebago Superchief..

[38Chevy454]

Sounds like you found the tank drains. These are also what you want to use for winterizing. Look around also for additional drains for the hot and cold lines.

[BFlinn181]

There are a number of videos like this:

https://www.youtube.com/watch?v=kOlPwmwlaMo

If you haven't downloaded the manual and diagrams for your RV, here's where to find them:

Winnebago Industries Operator Manuals

[lunalupis]

I have the manual, luckily the previous owners kept most of the paperwork, but diagrams? No such luck. I will have to download them. Thank you!

[Gary RVRoamer]

If there are two of them, what you found is the low point drains for the hot and cold lines. Not direct tank drain, but work fine (using the pump top get water out of the tank itself).

Not all coaches have built-in tank drains (without using the pump).

[BFlinn181]

My low point drains, when open, uses gravity to drain from the lines and the tank, no need to run the pump and possibly damage it by running it without water. I also have a drain before the pump that directly drains the tank.

[Romer1]

According to the 1988 manual, what the OP pulled are drains on either side of the pump, one for tank, one for lines.