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Old 09-07-2020, 07:42 PM   #1
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Freshwater tank sensor popped out

Well, it's never a dull day.

After parking the 2013 Greyhawk 31DS today, I checked out a drip coming from the bottom "empty" sensor on the freshwater tank. I touched it, and the whole thing fell out - with all the water flowing out like a busted dam

Has anyone ever repaired this? Any advice on what sealant to purchase?

I imagine I have to drain the tank, clean everything off, maybe sandpaper the exterior plastic tank around the hole so the sealant sticks? I fear that may have to buy a whole new sensor.... Or I could just cover the whole up and f the sensor, but I'd like to repair it and keep the sensor working.

Any thoughts welcome! Thanks in advance! And hope you had a good labor day!

C:
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Old 09-07-2020, 07:53 PM   #2
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I’d remove the sensor, seal that hole then drill a new one and start from scratch...
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Old 09-08-2020, 09:26 AM   #3
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Our first RV, the enterprising owner installed some handy shelves in the back and - yep - nailed the water tank.


Much smaller holes, granted but I used 5 min epoxy and it worked great!


I'd be tempted to treat it like a drywall, I'd probably epoxy a small screen over the hole and then epoxy up the screen until it's all sealed up.



Or plug it with something plastic and then epoxy that in...
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Old 09-08-2020, 12:38 PM   #4
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Our first RV, the enterprising owner installed some handy shelves in the back and - yep - nailed the water tank.


Much smaller holes, granted but I used 5 min epoxy and it worked great!


I'd be tempted to treat it like a drywall, I'd probably epoxy a small screen over the hole and then epoxy up the screen until it's all sealed up.



Or plug it with something plastic and then epoxy that in...
pconroy, thanks for the advice. may i ask what type of epoxy you used?
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Old 09-08-2020, 01:22 PM   #5
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pconroy, thanks for the advice. may i ask what type of epoxy you used?

Nothing special - the 5 minute two part epoxy in the syringes.
It was a few bucks at Home Depot.


I made sure the area was clean and dry.
It setup quickly but I let it cure for 24 hours before refilling.
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Old 09-08-2020, 01:38 PM   #6
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If you’re going to use an epoxy make sure that’s it’s safe to come in contact with potable water.
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Old 09-08-2020, 03:08 PM   #7
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pconroy, thanks for the advice. may i ask what type of epoxy you used?



epoxy, when fully cured, is generally considered safe.
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Old 09-10-2020, 11:48 AM   #8
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Thanks, Colorado and pconroy Will be attempting the repair next weekend. Really appreciate your time and thoughtfulness.

C:
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Old 09-10-2020, 12:58 PM   #9
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Move the sensor over and plug the dry hole with JB Weld. Waterproof and non-toxic per the package. I wouldn't eat any, might slow the digestion lol.
I have used it to patch holes in bumper drilled in the wrong place.
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Old 09-12-2020, 07:04 AM   #10
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Quote:
Originally Posted by brooklynchuck View Post
Well, it's never a dull day.

After parking the 2013 Greyhawk 31DS today, I checked out a drip coming from the bottom "empty" sensor on the freshwater tank. I touched it, and the whole thing fell out - with all the water flowing out like a busted dam

Has anyone ever repaired this? Any advice on what sealant to purchase?
Why wouldn't you want to just replace the sensor? At six or seven years old these sensors are probably losing there compression as the rubber seals age. These sensors seal themselves in place when you install them. If the old hole is still in good shape (not split or oval) you can buy a new sensor and put it in the old hole.
When installing it tighten it until it is snug, plus a quarter turn. Then clean up and reconnect sensor wire. Don't mix up which wire goes to which sensor.
While you are under there it would be prudent to change out all of the old sensors. Amazon sells six sensors for $13.00. Its really an easy fix, and no epoxy needed.
https://www.amazon.com/RecPro-Screw-...a-786362947846
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Old 09-21-2020, 08:30 AM   #11
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Yep, Scoutmaster253 - turned out to be as easy as that. Had trouble getting the sensors, but once I had one -- popped it in, turned the nuts and sealed! Thanks for sharing your advice
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Old 09-23-2020, 10:53 AM   #12
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Yep, Scoutmaster253 - turned out to be as easy as that. Had trouble getting the sensors, but once I had one -- popped it in, turned the nuts and sealed! Thanks for sharing your advice
Happy to help!
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Old 09-27-2020, 02:04 PM   #13
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Move the sensor over and plug the dry hole with JB Weld. Waterproof and non-toxic per the package. I wouldn't eat any, might slow the digestion lol.
I have used it to patch holes in bumper drilled in the wrong place.
I have to ask, is there a label that says not to eat it? Sorry, couldn't resist! Can't believe all of the warning labels on everything anymore.
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Old 09-27-2020, 03:01 PM   #14
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I have to ask, is there a label that says not to eat it? Sorry, couldn't resist! Can't believe all of the warning labels on everything anymore.
The warning labels are due to the numerous lawsuits over the years filed by the not so brilliant.
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Old 09-27-2020, 03:02 PM   #15
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DaveA Yep, keep away from children, use gloves to mix, keep out of eyes and don't inhale fumes. But - - "Drinking Water Safe" on the front of package. I believe it is the fumes and curing agents in it.

(coffee cups often caution contents may be hot, but they lie a lot) lol
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Old 09-27-2020, 03:52 PM   #16
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Old 09-27-2020, 06:00 PM   #17
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Quote:
Originally Posted by brooklynchuck View Post
Well, it's never a dull day.

After parking the 2013 Greyhawk 31DS today, I checked out a drip coming from the bottom "empty" sensor on the freshwater tank. I touched it, and the whole thing fell out - with all the water flowing out like a busted dam

Has anyone ever repaired this? Any advice on what sealant to purchase?

I imagine I have to drain the tank, clean everything off, maybe sandpaper the exterior plastic tank around the hole so the sealant sticks? I fear that may have to buy a whole new sensor.... Or I could just cover the whole up and f the sensor, but I'd like to repair it and keep the sensor working.

Any thoughts welcome! Thanks in advance! And hope you had a good labor day!

C:
Amazon has a plastic that turns hard with uv light. I have used it on many things and it's great. Some plastics, not many it doesn't work with. It's the same type of thing they fill teeth with.
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