Small leak under kitchen sink in 2019 t@b 400 BDL

Blueespy · February 2025

On a trip and last night spotted a small leak under our kitchen sink. Looks like it is coming from where the faucet and the hot/cold hoses connect. I see a number of postings where this has happened and the only real fix is a new faucet. I also have a small drip at the end of what appears to be a sump, connected to the 90 degree pvc that connects directly to the sink. Not sure exactly but I’m thinking I’ll need a new sump, plus the fittings that go on the end to the down connection that feeds into the gray tank. Very uncharacteristic of nuCamp parts - when I’ve had to order parts before I’ve called Elsie and she has given the parts numbers and I’ve given those to our local dealer. Made things quicker but I guess Elsie is no longer with nuCamp and the new person is not as cooperative. Can anyone tell me what tool I need to remove those hose clamps on the hot/cold hoses and are the clamps reusable? Finally, has anyone does this repair and could offer advise?
Thanks.

pthomas745 · February 2025

Pictures would be great to have.

This is one thread that discusses the "pex clamp removal tool".

https://tab-rv.vanillacommunity.com/discussion/18335/leaking-pex-connection-do-i-need-a-tool

Here is another discussion about removing the faucet on a 320...you may have already seen this.

https://tab-rv.vanillacommunity.com/discussion/16194/under-the-sink-faucet-leak

Blueespy · February 2025

pthomas745 said:

Pictures would be great to have.
This is one thread that discusses the "pex clamp removal tool".
https://tab-rv.vanillacommunity.com/discussion/18335/leaking-pex-connection-do-i-need-a-tool
Here is another discussion about removing the faucet on a 320...you may have already seen this.
https://tab-rv.vanillacommunity.com/discussion/16194/under-the-sink-faucet-leak

Thank you. I’ve attached several pictures. First being the connection to the bottom of the faucet. I think one pic actually captured a drop of water. The second is to the waterless trap. The third is to the piping behind the waterless trap when it turns downward. That white stuff is some sealant I had on hand and so far it’s stopped the leak except under the faucet but that’s only a drip I can manage with a towel. Thanks for the info on the tool. From the link it looks like most people replace those clamps with regular hose clamps that can be tightened with a screw driver. I’m going to see if I can find the waterless trap on Amazon though I have no idea as to size.

Blueespy · February 2025

pthomas745 said:

Pictures would be great to have.
This is one thread that discusses the "pex clamp removal tool".
https://tab-rv.vanillacommunity.com/discussion/18335/leaking-pex-connection-do-i-need-a-tool
Here is another discussion about removing the faucet on a 320...you may have already seen this.
https://tab-rv.vanillacommunity.com/discussion/16194/under-the-sink-faucet-leak

I found the replacement waterless trap but sizes or 1 1/2 or 1 1/4 and nuCamp is closed so no idea. You have any clue?

pthomas745 · February 2025

This is the original Hepvo valve thread that introduced that modification. Another Dale Helman idea that NuCamp adopted. I'm not sure on the size, but there should be clues in this thread that includes parts lists.

https://tab-rv.vanillacommunity.com/discussion/6699/successfully-eliminated-p-trap-under-sink-with-hepvo-valve/p1

Freespirit · February 2025

https://tab-rv.vanillacommunity.com/discussion/16194/under-the-sink-faucet-leak#latest

This may be of some assistance with the leak not related to the Hepvo.

Citruscountytab400 · February 2025

It's a cheap sink faucet that cost nucamp $3, so just spend $100 and put in a real residential faucet, and be done with it. People don't understand how cheaply built the tabs are, though better built than the other mass produced TVs for on the market, they still are very cheaply built. Yes, the plywood cabinetry is nice and a few of the other visuals are impressive, but it's an illusion if you have construction knowledge and understand the mechanical aspects. I have a tab 400 and have replaced a lot of things that lasted a few months to a couple years. The faucets last a few years and then fall apart. Just buy a real name brand faucet and it won't leak.

Blueespy · February 2025

Citruscountytab400 said:

It's a cheap sink faucet that cost nucamp $3, so just spend $100 and put in a real residential faucet, and be done with it. People don't understand how cheaply built the tabs are, though better built than the other mass produced TVs for on the market, they still are very cheaply built. Yes, the plywood cabinetry is nice and a few of the other visuals are impressive, but it's an illusion if you have construction knowledge and understand the mechanical aspects. I have a tab 400 and have replaced a lot of things that lasted a few months to a couple years. The faucets last a few years and then fall apart. Just buy a real name brand faucet and it won't leak.

My thoughts exactly but if I could find one that folds down so my wife can keep that glass top I would be all over it. She likes the glass top as it extends her counter space. Since you’ve obviously replaced yours, can you share some photos or links of which faucet you purchased?

manyman297 · February 2025

Yeah, this isn’t as easy as putting a residential faucet in. You’ll have to do some research but I know there are ones that will replace it. The one linked below was one I had in my Amazon list as I was anticipating replacing the Dometic one but I ended up doing a complete overhaul with a residential faucet and bigger sink…a project but well spent the effort.

It appears it’s unavailable now:

https://a.co/d/dTP4fnf

rh5555 · February 2025

@Blueespy said:

My thoughts exactly but if I could find one that folds down so my wife can keep that glass top I would be all over it. She likes the glass top as it extends her counter space.

Look at this one. And see my post from ages ago: https://tab-rv.vanillacommunity.com/discussion/comment/149901#Comment_149901

This is a cheaper alternative: https://tab-rv.vanillacommunity.com/discussion/17940/changed-out-the-stock-faucet/p1

qhumberd · February 2025

Blueespy said:

pthomas745

said:

Pictures would be great to have.
This is one thread that discusses the "pex clamp removal tool".
https://tab-rv.vanillacommunity.com/discussion/18335/leaking-pex-connection-do-i-need-a-tool
Here is another discussion about removing the faucet on a 320...you may have already seen this.
https://tab-rv.vanillacommunity.com/discussion/16194/under-the-sink-faucet-leak

Thank you. I’ve attached several pictures. First being the connection to the bottom of the faucet. I think one pic actually captured a drop of water. The second is to the waterless trap. The third is to the piping behind the waterless trap when it turns downward. That white stuff is some sealant I had on hand and so far it’s stopped the leak except under the faucet but that’s only a drip I can manage with a towel. Thanks for the info on the tool. From the link it looks like most people replace those clamps with regular hose clamps that can be tightened with a screw driver. I’m going to see if I can find the waterless trap on Amazon though I have no idea as to size.

As far as removing the supply lines, I just used a cutter to take them loose. The plastic nut holding the old faucet was also hard to access but a faucet tool would work best.

The folding sink referenced comes with braided supply lines so two adapters and the hookups are easy with no special tool.

i got the folding sink referenced in the prior comment and it works great. Hope it’s still available.

The sink drain is a Hepvo valve.

Kevin_K · February 2025

This is the thing I've been fighting ever since I purchased the trailer. I tore the drain apart several times to make sure that everything was tight (water was on it and thought it was simply condensation). What was the real culprit is the faucet not being tightened enough on the sink (base area). After tightening it, the problem seemed to go away. However, over time the faucet becomes lose again because you have to twist it a bit for the cover to close completely. After repeatedly doing this, I simply replaced the faucet with this one from Amazon:

https://www.amazon.com/Foldable-Faucet-Universal-Caravan-Rotation/dp/B09ST2JV9P/ref=asc_df_B09ST2JV9P?mcid=ed19d4c72a8335098445a7716beaacf0&hvocijid=13270575153246035268-B09ST2JV9P-&hvexpln=73&tag=hyprod-20&linkCode=df0&hvadid=730432682330&hvpos=&hvnetw=g&hvrand=13270575153246035268&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9199237&hvtargid=pla-2281435177418&th=1

Blueespy · February 2025

UPDATE - so after finding the leak and still having two weeks on our trip, I used a liberal amount of sealant and pretty much stopped the leak. Temporary of course but then with about a week to go, my wife "bumped" the faucet and the entire neck broke off at the base. Now, holding it in with the left hand, turn the water on with the right, and do what you need only with the right worked for 10-mins then the wife said "fix it". Well, not so easy on the road but who doesn't travel with duct tape and Gorilla Glue. Yep, you got it. I glued the neck on then secured it with a bunch of Gorilla tape. Now, it's low meaning you can't angle it up, but it's workable.

Thanks to this forum, when we got home I had a new faucet, hoses (faucet description did not say it came with hoses but it did) and I purchased to 3/8 to 1/2 adapters for connecting the faucet hose to the hot/cold hoses. All said and done in about and hour and it leaked like the Titanic at the coupler where the faucet hoses connected to the t@b hoses. So, after an hour of struggling, off I went to the local hard ware store and found two guys who have some head scratching, mumbling, said "it a Plex cutter and cut the Plex under those white plastic connectors. Then purchase two Shark Bite connectors (be sure to purchase the plastic U shape device to remove the Shark Bite if you need to). Back at the tab, connected the Shark Bite, connected the faucet hoses, and no leaks. Better faucet, no leaks, everyone is happy. I've attached some photos. Again, thanks for the help and suggestions on the forum.

Small leak under kitchen sink in 2019 t@b 400 BDL

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