Drain Valves...

[gMw]

Winterizing.. I know, the camping season ain't over yet.. But it's a good time to ask a question..

The owner's manual indicates there's a cold and hot water drain valve. Also the hot water heater drain plug and fresh water tank drain. That matches up with all the other motorhomes and trailers we've owned to date.

When I open the drain valves, cold and hot, and open the faucets, there's a fair amount of water the comes out of the cold water drain valve, but almost nothing out of what I believe is the hot water drain valve. The amount of water is less than a cup, than stops.

FYI, I've tried opening the drain valves while connected to city water, and tried opening the valves while the pump was on. When connected to city water, plenty of drainage out of the cold side, almost nothing out of the hot side. Also, even if there's hot water available, there's no hot water being drained. If I try this with the pump on, interesting thing happens, the cold drain flows water fine, but when I open the hot water drain, the pump loses water...

So I opened everything up, found what I thought was the hot water drain was actually connected to the water line that goes between the fresh water tank and the pump. The cold water drain valve is indeed connected to the cold water side. Nothing connected to the hot water side as far as I can tell..

Anyone have a motorhome plumped this way?

[gMw]

Winterizing.. I know, the camping season ain't over yet.. But it's a good time to ask a question..

The owner's manual indicates there's a cold and hot water drain valve. Also the hot water heater drain plug and fresh water tank drain. That matches up with all the other motorhomes and trailers we've owned to date.

When I open the drain valves, cold and hot, and open the faucets, there's a fair amount of water the comes out of the cold water drain valve, but almost nothing out of what I believe is the hot water drain valve. The amount of water is less than a cup, than stops.

FYI, I've tried opening the drain valves while connected to city water, and tried opening the valves while the pump was on. When connected to city water, plenty of drainage out of the cold side, almost nothing out of the hot side. Also, even if there's hot water available, there's no hot water being drained. If I try this with the pump on, interesting thing happens, the cold drain flows water fine, but when I open the hot water drain, the pump loses water...

So I opened everything up, found what I thought was the hot water drain was actually connected to the water line that goes between the fresh water tank and the pump. The cold water drain valve is indeed connected to the cold water side. Nothing connected to the hot water side as far as I can tell..

Anyone have a motorhome plumped this way?

[smlranger]

I've never really checked to see how it is plumbed, but I never have much water come out of the 'hot' drain in the utility compartment. I rely on draining the water heater, then I use compressed air to blow out all the lines.