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Old 06-22-2016, 07:56 PM   #1
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Help! Low Point Drain Not Draining

How do I empty my fresh water tank.
I've opened the low Point drain plug but only a trickle came out and stopped even with a full tank.

I tried opening the bypass to the Hot water tank, I've even turned the winterize valve at the water pump nothing comes out.

It only comes out if I switch on the water pump.

I thought this was just a gravity style drain valve.

What am I doing wrong?

Thanks
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Old 06-22-2016, 08:10 PM   #2
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Typically the low point drains, drain water from the lines to your sinks, shower, etc.. should be a separate valve to drain your freshwater tank and is should be much larger than the low point drains.


On my MH I have both hot and cold low point drains. These are maybe 1/2" lines. FW drain is closer to 2 1/2".
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Old 06-22-2016, 08:13 PM   #3
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BTW, if your low point drains are just trickling try opening a faucet to break the vacuum.
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Old 06-22-2016, 08:29 PM   #4
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Quote:
Originally Posted by sdennislee View Post
Typically the low point drains, drain water from the lines to your sinks, shower, etc.. should be a separate valve to drain your freshwater tank and is should be much larger than the low point drains.


On my MH I have both hot and cold low point drains. These are maybe 1/2" lines. FW drain is closer to 2 1/2".
OK maybe I am not thinking straight. Say I have a full tank of fresh water that I want to get rid of, do I do this using the low point drains? Or are they only to get rid of water in the pipes only?

My understanding is that they are to empty out ompletely the fresh water tank etc please correct me if I'm wrong.

And I've tried opening the valves to break the vacuum. Still no go unless the pump is on.
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Old 06-22-2016, 08:33 PM   #5
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OK maybe I am not thinking straight. Say I have a full tank of fresh water that I want to get rid of, do I do this using the low point drains? Or are they only to get rid of water in the pipes only?

My understanding is that they are to empty out ompletely the fresh water tank etc please correct me if I'm wrong.

And I've tried opening the valves to break the vacuum. Still no go unless the pump is on.
Unfortunately I don't know your rig.

On mine the low point drains will only drain the plumbing to the faucets. They will not drain a drop of water from my FW tank, it has its on valve.
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Old 06-22-2016, 08:45 PM   #6
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Here are pictures of my drains.

Red and blue are hot and cold low point drains.

White is FW tank drain
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Old 06-22-2016, 09:07 PM   #7
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Unfortunately I don't know your rig.

On mine the low point drains will only drain the plumbing to the faucets. They will not drain a drop of water from my FW tank, it has its on valve.
Thank you. I just spoke to Mike the Service Manager from Lance who is brilliant!

He phoned me about another issue and I quizzed his brain.

It appears Lance has a seperate low point gravity drain for the fresh water on the side of the actual FW tank. I just turned it and wallah out comes the water! Problem solved.

It appears the two low point drains are for hot/cold pipes and that's all, not to drain any FW from the tanks.
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Old 06-22-2016, 09:10 PM   #8
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I was about to say what you found out. I was out sanitizing my tank tonight and found a plug in the bottom of the fresh water tank that I juts take out to empty.
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Old 06-22-2016, 09:12 PM   #9
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Glad you got it resolved
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Old 06-23-2016, 12:46 PM   #10
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Quote:
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How do I empty my fresh water tank.
Why are you draining so soon?
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Old 06-23-2016, 06:39 PM   #11
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The same on our Grey Wolf, there is a drain nipple on the bottom of the fresh water tank, ours just has a pipe cap you remove to drain, but adding a valve would be no big deal. We never fill it, because we have not boondocked and always have water hookup at the campground, i only fill it when a big storm is predicted and may lose power. We live somewhat in the boonies and nothing works without power. So we have an emergency self sufficient lodging in the back yard ( as long as the batteries hold up )
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Old 06-24-2016, 04:35 AM   #12
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Got back from a short trip and found my fresh water tank empty. I had left pump on and my low point valve was leaking......
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Old 06-24-2016, 04:47 AM   #13
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Why are you draining so soon?
In my haste to get away last weekend, I used my garden hose to fill the FW tank. I KNOW I should use the white hoses, usually I do but in my haste I had taken leave of my senses.

The water tasted like

So I needed to drain it and get rid of that rubber odour.

It has all been done!
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Old 06-24-2016, 04:48 AM   #14
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Got back from a short trip and found my fresh water tank empty. I had left pump on and my low point valve was leaking......
oh no!! I home the pump didn't overheat and burn out!!
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