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Old 12-26-2017, 09:09 AM   #1
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Low point drain

I have 2018 CC silverback 37rl. Just under the entrance are hot/cold low point drain tubes, I have a constant leak coming frome Click image for larger version

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ID:	159023one. I am hooked up to city and fresh tank is empty. Is there a valve somewhere for low point drains that I may not have closed? Could it be the white drain piece not fully seated into the black fitting on the tube. In the compartment wth the tank valves are a lot of water lines and valves that I know nothing about. Would appreciate any help. Click image for larger version

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Old 12-26-2017, 09:18 AM   #2
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Most termination Pex LPD lines use a Male thread on the line and a Female cap,WITH a Special Seal between the two! Looks like your LPDs ae just Reverse! Look for the Removable seal,they Like to Fall Out! Youroo!!
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Old 12-26-2017, 09:23 AM   #3
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Is it just dripping from the cap plug on the end of the line ? Those lines will fill with water no matter if you're on City Water or Fresh water tank. My plugs leaked on my 2017 when I got it this year. I replaced the plugs with 1/4 turn valves.
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Old 12-26-2017, 09:32 AM   #4
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Is it just dripping from the cap plug on the end of the line ? Those lines will fill with water no matter if you're on City Water or Fresh water tank. My plugs leaked on my 2018 when I got it this year. I replaced the plugs with 1/4 turn valves.
Yes it's dripping from that plug, will look at the hardware store today for a valve I can put in there.
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Old 12-26-2017, 09:39 AM   #5
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Yes it's dripping from that plug, will look at the hardware store today for a valve I can put in there.
Just wasn't sure if I had a valve open that stopped the water from going to that line.
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Old 12-26-2017, 09:40 AM   #6
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Yes it's dripping from that plug, will look at the hardware store today for a valve I can put in there.
Like Roo said also. Check the seal inside the cap to make sure it didn't fall out or not seated properly. I went to valves so I wouldn't have to worry about losing a cap down the road, or the dripping.
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Old 12-26-2017, 09:44 AM   #7
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Yes it's dripping from that plug, will look at the hardware store today for a valve I can put in there.
We've had several members report a slow leak/drip for those drains. In some cases, the cap/plug was merely not quite tight. In some cases, the seal (not the same as - but similar to - a garden hose rubber seal) was missing as mentioned above. As suggested, sometimes these seals jump overboard during winterization/draining/etc. and are lost in the grass. Valves are good long-term solutions but for the short term, sometimes one can just tighten the cap.

These drains are only indirectly associated with the fresh tank (as was mentioned above). They allow the draining of water from the unit's hot/cold water lines regardless of whether the water came from the fresh water tank or campground water line.
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Old 12-26-2017, 09:55 AM   #8
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As mentioned, these SHOULD have water in them.

Here are 2 styles of 1/4-turn valves. I started with the PVC ones but they eventually leaked and I replaced the one with the metal. I’ve carried a metal one for the other side for 3 years now and keep waiting for it to leak.

Click image for larger version

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(Ugh. My apology for the out of focus picture. But it should give you the right idea.)
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Old 12-26-2017, 09:59 AM   #9
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Here's a thread I posted a long time ago when I lost one of my caps:

http://www.forestriverforums.com/for...sam-32163.html

I got info on what to get for these 1/4-turn valves from it.
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Old 12-26-2017, 09:59 AM   #10
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Yes it's dripping from that plug, will look at the hardware store today for a valve I can put in there.
Before you install your valves you may want to think about "Location"! LPDs that have the Caps on the End of the PEX are Exposed to "Freezing"! The LPDs that have a Valve above the floor are more Protected and the Pex that hangs down outside has NO Cap to trap water in! Youroo!!
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Old 12-26-2017, 10:05 AM   #11
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I have 2018 CC silverback 37rl. Just under the entrance are hot/cold low point drain tubes, I have a constant leak coming frome Attachment 159023one. I am hooked up to city and fresh tank is empty. Is there a valve somewhere for low point drains that I may not have closed? Could it be the white drain piece not fully seated into the black fitting on the tube. In the compartment wth the tank valves are a lot of water lines and valves that I know nothing about. Would appreciate any help. Attachment 159022
Best guesses since cannot really tell where they go. Click image for larger version

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Pretty sure the three are for bypassing the HW heater when you winterize. You reverse them all to skip the heater before you put in atifreeze.

The winterization hose should lead to an antifreeze intake to suck it in. I assume you are not winterized or this and the FW may be reversed.

The FW line should lead to your FW tank.
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Old 12-26-2017, 10:20 AM   #12
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Thank you all. Boy am I stupid I thought the whole time that the end cap was some sort of valve you open or close by twisting to drain the system. I just had a loose end cap. 8 months ago my wife and I made the move to downsize by selling our home and doing this and I am obviously still figuring it out. I had been looking at this leak for a while trying to find a valve. I really appreciate the help on this forum. You guys have a happy New Year.
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Old 12-26-2017, 10:41 AM   #13
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Not sure how you would know until you winterized...The only dumb question is the one not asked.

Happy camping!
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Old 12-26-2017, 10:48 AM   #14
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Just wasn't sure if I had a valve open that stopped the water from going to that line.
There is no valve in the line. That is there to drain all the water from the water line. Hence "LOW Point Drain". See if the cap is tight. See if there is a washer in the cap.
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Old 12-26-2017, 10:51 AM   #15
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There is no valve in the line. That is there to drain all the water from the water line. Hence "LOW Point Drain". See if the cap is tight. See if there is a washer in the cap.
It's tight now
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Old 12-26-2017, 03:33 PM   #16
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Glad you got it fixed, those caps are a pain. As others have said valves are a good way to get rid of them. I cut the Pex tubing up about 5 inches from the end fitting and installed two push on Watts 1/2 inch valves then installed the cut off pieces in the other end. I use the low point drains to do Air only winterization so I needed to keep the fitting on the end.
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Old 12-26-2017, 04:25 PM   #17
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There is no valve in the line. That is there to drain all the water from the water line. Hence "LOW Point Drain". See if the cap is tight. See if there is a washer in the cap.
At 9:20, the OP wrote "I just had a loose end cap." Problem solved.
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Old 12-27-2017, 09:13 AM   #18
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Yes it's dripping from that plug, will look at the hardware store today for a valve I can put in there.
Understand you got your problem fixed....great! Just to add another wrinkle to the conversation - I recently came across the hot water low point drain leaking on our CC 38FL. Turned out the PEX line had cracked due to UV exposure (the line was almost pink, rather than red). When I loosened the cap, I was a little surprised to find the line pressurized at first, but after about three seconds it made perfect sense 😂.
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