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Old 05-20-2015, 05:08 PM   #1
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Question Low Point Drain constant leak

So we had our first trip of the year this past weekend with our brand new trailer - and overall it was a success.

One thing we didn't expect was "the wet spot" -under the front low point drain on our Seismic 3210 Toy Hauler, there was a near-constant trickle, or sometimes just a drip from the drain.

We really don't know what that drain is for, there is no valve on it and mostly wondering if it is "normal"???

Here is a short clip:

(Sorry for the Vertical Video Syndrome, but it seemed this orientation allowed me to zoom in better on the valve and flow in a relatively dark environment under the trailer!)

Any ideas???? STUMPED.
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Old 05-20-2015, 05:14 PM   #2
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those low point drains are for when you winterize the camper or when you want to clear the lines of water What I would suggest is to find the valve on the inside of the camper and to pull the handle up and then push it down Its possible that the drain valve isn't fully closed
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Old 05-20-2015, 05:14 PM   #3
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The water looks to be from the vent/overflow tube, not the low point drain. 'Leaks' from the vent/overflow are common when the tanks are full.

I'm sure others will chime, too, that know more about your trailer.
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Old 05-20-2015, 05:24 PM   #4
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The valve is probably directly above it. If it's near the basement compartment there is probably a panel inside that you need to remove to get to the valve(s). There could be a very small piece of plastic from when they cut the water lines that is stuck in the valve.
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Old 05-20-2015, 05:28 PM   #5
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Quote:
Originally Posted by oldmanAZ View Post
The water looks to be from the vent/overflow tube, not the low point drain. 'Leaks' from the vent/overflow are common when the tanks are full.

I'm sure others will chime, too, that know more about your trailer.
My thoughts, too. The low point drains should have a valve on each line that are accessible from below. There are no valves on these lines. I suspect they are the overflow tubes from your fresh tanks. I know when my tanks are full when the water begins to trickle out like in your video. But they shouldn't drip like that all weekend. Not sure what would cause that.

Were you hooked up to city water? If so, the check valve that separates the city water inlet from the pump outlet is sticking open a little and water has filled your tanks to overflowing. Just a guess.
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Old 05-20-2015, 05:33 PM   #6
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My thoughts, too. The low point drains should have a valve on each line that are accessible from below.
Not on the units with the Thermal Package, the valves are inside, above the basement floor or interior floor so they don't freeze.
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Old 05-20-2015, 05:34 PM   #7
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Normally when you see two lines that are together like the OP has in his video they are low point drains one for the hot line and one for the cold lines They will have a valve inside of the camper that you need to pull up on to open and push down to close. From what I have seen of overver flow drains is you normally see a single line for that purpose. My money is on a slightly open low point drain valve
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Old 05-20-2015, 05:35 PM   #8
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No city water, we were dry camping with approx 1/3 tankload of water (another "oops" / learning experience.)

I also noticed that even when no water was running, the water pump would intermittently fire up - I assume to re-pressurize the plumbing system like a jet pump would on an acreage with a leaky toilet.

We turned off the jet pump when not in use because we didn't have enough water with us to waste. I noticed anytime later when I needed water and would flip the switch on to power the pump, that it would then run for about 10 seconds -a pretty long time, it would seem.

To me, it seems like there is a leak somewhere, but I just don't know what those drain tubes are for. The area above it on the side of the trailer is marked as low point drain, hence my thread title, but I really don't know.

As for where this is - it is the side opposite the driver side, directly underneath the passthru storage. I also noticed a slight "hum" from the panel to my left when looking into that passthru storage, when really nothing was in use. The fridge/freezer is further over, on the other side of the entrance door, so I don't think the hum is from that.

Clearly lots to learn with this new rig...
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Old 05-20-2015, 05:39 PM   #9
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Quote:
Originally Posted by bedrck46 View Post
Normally when you see two lines that are together like the OP has in his video they are low point drains one for the hot line and one for the cold lines They will have a valve inside of the camper that you need to pull up on to open and push down to close. From what I have seen of overver flow drains is you normally see a single line for that purpose. My money is on a slightly open low point drain valve
That sounds spot on -but what kind of valve do you mean? I have the winterize/sanitize/fill valves on the other side of hte trailer. other than that, the only valves I know of are faucets and the toilet inside -and those aren't leaking.

Is there another valve somewhere I should be looking for? I'm actually pretty decent with plumbing, I just don't know JACK about trailers. Yet....
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Old 05-20-2015, 05:45 PM   #10
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if you look at the water lines directly abobe when the lines are that exit the camper you will see what looks like a T handle the will either pull up or outwards or push down or inwards That is the valve May be black in color I would try pushing it in first as it may have not been fully closed. The fact you saying that the pump ran from time to time would indicate that it isn't fully closed
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