15 replies to this topic

[storm98]

I am replacing the pump on my AT3K with a hornet pump, I put 1/4" OD vinyl tubing straight from Pump to tank but anything i do to seal the tubing pops after 3 pumps, I've tried Hot glue, elmer's glue but none are working, Help!

[2TAGS]

Are you still using the threaded collars?

[DICE134]

Are you using hotglue to connect the tubings together? If so, that simply won't cut it. You should get a tubing connector/ check valve to connect the tubing. Hope this helps.

[BuffNerd]

Try Goop or super glue. You can buy Goop in Home Depot in the adhesive section.

[NerfNoob10]

I am replacing the pump on my AT3K with a hornet pump, I put 1/4" OD vinyl tubing straight from Pump to tank but anything i do to seal the tubing pops after 3 pumps, I've tried Hot glue, elmer's glue but none are working, Help!

Um... Are you kidding? You need to use epoxy, hot glue really doesn't bond, mostly just used as filler, and elmer's glue wont hold anything... EVER. Try loctite plastic epoxy, this stuff, you can find it in any homedepot of lowes, I use it on all my pump replacements and have never had a problem.

http://www.amazon.co...e plastic epoxy

[ThatBritishGuy]

Um... Are you kidding? You need to use epoxy, hot glue really doesn't bond, mostly just used as filler, and elmer's glue wont hold anything... EVER. Try loctite plastic epoxy, this stuff, you can find it in any homedepot of lowes, I use it on all my pump replacements and have never had a problem.

http://www.amazon.co...e plastic epoxy

Seconded, whenever I connect tubing it is always with 2-part epoxy, otherwise the weak points will expand and pop under pressure - in this case the joins between the tubing and the components. Remember to leave it to cure for the full time advertised - normally 24hrs, otherwise it will just break again.

[HOTH]

Um... Are you kidding?

No, I do not think he was. However, I agree that super glue is used in this hobby mostly for filling, as it dries quickly and expands. I would suggest using Siliconized Acrylic Caulk, as it has worked for me in the past with Vinyl tubing. the stuff is not easy to work with when talking about adhesives and sealants. I would suggest a few layers of that (definitely not too much) and then an adhesive of your choice after. It would help if said adhesive also had sealant properties, such as plumbers goop. I would use epoxy putty for the final layer.

[andtheherois]

Just use super glue. Get loctite. Then splice in a quick release connection so you can separate
The tank from the pump when necessary. That's how I do it and it's always worked for me.

[ShaNayNay]

I don't see why this needs so many responses.

Andtheherois is correct, do what he recommends. I use original brand super glue that comes in $1.00 packs from the dollar store. I always use it for connecting vinyl tubing to pumps and tanks and it hasn't failed me yet. I doubt you will be pumping this to insanely high pressure, so stuff like epoxy and plumbers good isn't absolutely necessary. Super glue in my opinion is your best bet as it is proven to work and is cost effective. With a quick release connector you can remove the pump whenever you desire, in case you want to ever put it on another blaster or ad more tubing.

As for Elmer's glue, just throw that out, there isn't a single use for it on the NIC.

Edited by ShaNayNay, 13 January 2013 - 01:23 AM.

[T da B]

Like DICE said, you are going to need a check valve connected right after your pump. Nerf pump housings have a built-in check valve, so if you replace the pump you will need to provide your own check valve. Also, each pump has its own max psi rating, so make sure you aren't exceeding it. If it is just a leak that needs to be patched, the other Nerfers have plenty of good suggestions.

~T da B

[TheSilentRebel]

Like DICE said, you are going to need a check valve connected right after your pump. Nerf pump housings have a built-in check valve, so if you replace the pump you will need to provide your own check valve.

The hornet pump should have a built-in check valve, unless OP is connecting it in some pre-Cambrian method.
Also, tubing should be able to be connected to the tank using the original stem with the original nut tightened on the outside of the tubing. It will hold with just a weak adhesive, with most of the stress being on the tightening nut.

[quertyman]

Wow my at3k is making me really mad. First I used a nylon barb coupler covered in pvc glue. Then I cover it in jb weld and huld it together with 3 zip ties. Then I completely cover that in more jb weld and finish with a thick epoxy putty layer. The last layer has been drying for at least 7 hours now. And when i just tried to pump it up something popped at 5 pumps. I feel like the jb weld isn't working very well. But any epoxy should become hard enough after 7+ hours of drying. I also have found the hornet tubing is larger than the at3k tubing. Anyone have any ideas?

Edited by quertyman, 15 January 2013 - 07:57 AM.

[hamoidar]

Did you mix the epoxy enough?
In my experience, JB weld is not good for tubing because it is rigid, and the tubing flexes, causing the JB to crack.
Most epoxy types take at least 24 hours to cure.
I would really recommend using super glue. It will hold the tubing like no tomorrow.

Good luck!

[quertyman]

Hmmm, I mixed it enough I know. And I didn't crack it. What its standard procedure for vinyl tubing. And wouldn't pvc glue not adhere to the nylon?

[T da B]

Hmmm, I mixed it enough I know. And I didn't crack it. What its standard procedure for vinyl tubing. And wouldn't pvc glue not adhere to the nylon?

PVC cement adheres PVC to PVC. I have tried it on other plastics and it simply doesn't work, most likely because the proper chemical reactions aren't taking place. Use something designed for general plastics. From my experience, JB Weld is not the greatest adhesive for plastic to plastic or things that flex.

[LT DAN ICE CREAM]

Superglue and a quick connect fitting spliced in is the easiest way to do this. Stop trying to use overkill and isten to the advice of andtheherois, the dude kinda knows what he's talking about.