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Old 11-16-2019, 01:57 PM   #1
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Water coming out of low point drain/overflow

I hooked up my water today since it is the first warm day in a while. Took a shower and water temperature fluctuated and uneven pressure. Got dressed an looked out side, ground flooded. Water coming out my overflow (I think, I never had water come out of this before. When I changed to fill water tank, water stopped out of low drain/overflow. No turn off nob.

Anyone know what is going on? Water tank filled properly.
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Old 11-16-2019, 02:08 PM   #2
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Follow up

Holding tank filled, but when I turn on the pump, water came out of this tube:

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Old 11-16-2019, 02:12 PM   #3
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After posting the above picture, I saw in the picture, but not in real life, the end cap laying on the ground. (left on ground from tube.) I guess I solved my own problem.
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Old 11-16-2019, 02:25 PM   #4
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It looks like the cap and threaded portion the cap goes on has frozen and broken off. It's on the ground to the left in your photo. Look at at both the red and blue water lines. The cap on the blue one is the broken one (it should look like the red cap). You will need to replace that fitting, but may be able to reuse the cap if it was not cracked also.

Basically the low point drain is open now and any water pumped into the lines is going to drain out on the ground pretty quick.

(EDIT - I was marking up the photo to post and we cross posted)


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Old 11-16-2019, 03:05 PM   #5
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I went to remove the remaining part, which looked like it was attached to the hose by a hose clamp. However, the hose clamp is a permanent one, not like the hose clamps on your car that have a thread screw. I guess I have to cut the hose above the camp to get the remaining broken part out.
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Old 11-16-2019, 03:20 PM   #6
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That is PEX pipe. A standard screw clamp will not work on it. Using one pretty much guarantees that you will have a leak. You need to relace the broken part with a PEX fitting. You are correct that it is recommended that you cut off the old fitting and replace it. It is VERY important that you make a clean 90degree cut. You have a couple of options for replacement:
1. get some pex clamp rings and the matching crimp tool (there are 2 types). This would go with a push in PEX fitting. Your choice on plastic or brass fittings

2. Get a Sharkbite or other brand push on PEX fitting.

FWIW, many folks replace the cap with a ball valve.
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Old 11-16-2019, 05:11 PM   #7
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Went to Home Depot. They did not have a replacement for the original. They did have PEX brass fitting that my blue hose clamped in, push to connect. My original cap screwed into the new device. I do not know what PEX means or what is on the package - 1/2" X 1/2" FNPT. Since it works, and does not leak, I am happy.
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Old 11-17-2019, 11:22 AM   #8
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Steve, make sure you leave those low point drains open if you are somewhere that freezes. I put my caps inside the trailer after i finish blowing lines.
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Old 11-17-2019, 01:39 PM   #9
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Quote:
Originally Posted by NJKris View Post
Steve, make sure you leave those low point drains open if you are somewhere that freezes. I put my caps inside the trailer after i finish blowing lines.
I am full time and never winterize.
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Old 11-17-2019, 01:41 PM   #10
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Did they freeze and crack, or other mechanical force?
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Old 11-17-2019, 01:46 PM   #11
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Quote:
Originally Posted by NJKris View Post
Did they freeze and crack, or other mechanical force?
The plastic piece that you screw the end cap into broke.

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Old 11-17-2019, 02:56 PM   #12
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For your information

Quote:
Originally Posted by Scheinin View Post
Went to Home Depot. They did not have a replacement for the original. They did have PEX brass fitting that my blue hose clamped in, push to connect. My original cap screwed into the new device. I do not know what PEX means or what is on the package - 1/2" X 1/2" FNPT. Since it works, and does not leak, I am happy.
For your information, here's some nomenclature:
PEX is the name of that type of plastic pipe. It stands for "cross-linked polyethylene."

FNPT is actually two abbreviations. F stands for female which means the threaded part accepts another part inside it. NPT stands for National Pipe Thread which indicates that other NPT parts of the same size will screw into it.

1/2" x 1/2" FNPT describes both ends of the fitting. The first 1/2" indicates that the slip-on part fits over 1/2" pipe or tubing which is what your trailer has. The 1/2" FNPT indicates that the threaded part will mate with a 1/2" MNPT male plug.

Push to connect: There are several manufacturers of these fittings now, but the original manufacturer called them "Shark-Bite" and some folks still use that name, even when working with other brands (the Xerox/Kleenex syndrome).

They gave you good advice at Home Depot.
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Old 11-17-2019, 03:05 PM   #13
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Quote:
Originally Posted by Larry-NC View Post
For your information, here's some nomenclature:
PEX is the name of that type of plastic pipe. It stands for "cross-linked polyethylene."

FNPT is actually two abbreviations. F stands for female which means the threaded part accepts another part inside it. NPT stands for National Pipe Thread which indicates that other NPT parts of the same size will screw into it.

1/2" x 1/2" FNPT describes both ends of the fitting. The first 1/2" indicates that the slip-on part fits over 1/2" pipe or tubing which is what your trailer has. The 1/2" FNPT indicates that the threaded part will mate with a 1/2" MNPT male plug.

Push to connect: There are several manufacturers of these fittings now, but the original manufacturer called them "Shark-Bite" and some folks still use that name, even when working with other brands (the Xerox/Kleenex syndrome).

They gave you good advice at Home Depot.
Thank you Larry. I learn something new every day.
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Old 11-17-2019, 03:21 PM   #14
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Quote:
Originally Posted by Larry-NC View Post
For your information, here's some nomenclature:
PEX is the name of that type of plastic pipe. It stands for "cross-linked polyethylene."

FNPT is actually two abbreviations. F stands for female which means the threaded part accepts another part inside it. NPT stands for National Pipe Thread which indicates that other NPT parts of the same size will screw into it.

1/2" x 1/2" FNPT describes both ends of the fitting. The first 1/2" indicates that the slip-on part fits over 1/2" pipe or tubing which is what your trailer has. The 1/2" FNPT indicates that the threaded part will mate with a 1/2" MNPT male plug.

Push to connect: There are several manufacturers of these fittings now, but the original manufacturer called them "Shark-Bite" and some folks still use that name, even when working with other brands (the Xerox/Kleenex syndrome).

They gave you good advice at Home Depot.
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