Kayfun v5: Does yours leak?

[TheotherSteveS]

Nonsense. At least it shouldn't be that way. It would be pointless to carry it in your pocket. Not to mention mods that charge from a bottom port overnight. Or the countless tube mods people lay on their sides.

I'm afraid you are wrong on that. Most RTAs work on a vacuum principle, as stated. As juice is used, more is wicked out of the tank, and replaced by an equivalent 'amount' of air - the bubbles rising from the juice ports - to equalise the pressure inside. If you lay it on its side, the empty space in the tank will 'see' the juice port, the vacuum will be lost and it will flood and ultimately leak. This is pretty much the same reason it will leak if, for example, you loosen the top cap on a top filler. Some tanks might be more prone to this than others, but in the end all tanks with this design will suffer the same effect.

 

[r055co]

I've got SXK Clones and an Authentic, not a problem with leaking. I have found though with my Authentic that the juice control sticks when sitting overnight. I believe that's just due to very tight O-Rings which should smooth out with use. Anyway, no issues with leaks with any for them.

 

[KODIAK (TM)]

If you lay it on its side, the empty space in the tank will 'see' the juice port, the vacuum will be lost and it will flood and ultimately leak.

I just can't wrap my head around this my friend.

I have owned a dozen different RBA's, some top-fillers. Never a leak while laying on it's side overnight, attached to a mod for charging.

Love the flavor and ease of building but if nursemaiding the KF5 like this is what needs to be done then I'll go back to bottom-fillers.

 

[Two_Bears]

I just can't wrap my head around this my friend.

I have owned a dozen different RBA's, some top-fillers. Never a leak while laying on it's side overnight, attached to a mod for charging.

Love the flavor and ease of building but if nursemaiding the KF5 like this is what needs to be done then I'll go back to bottom-fillers.

I agree. I use a bottom filled Kayfun.

Every _____ing top filled Atty has leaked like crazy on me.

 

[TheotherSteveS]

Didnt mean that what I was saying was specific to top-fill because it isnt. The major issue with those is modtly (at least in my experience) that unless the JF can be properly closed, then some flooding/seepage/leakaing will always occur. Just some seal better than others I guess. Obviously if, like me, you regularly forget to close the JF then like can get messy...lol!

 

[Maestro]

Wrong. On my Mini V3 there was a hair line gap between tge Shaft met the edge of the catch cup. That stupid weak O ring was all it took for a vacuum leak.

Tge only way I could stop the leak was to completely close the Juice flow at night.

Yours must be built differently than mine, then. My top cap is one piece and the bore bevels to a smaller size below the drip tip. The drip tip doesn't even go down far enough to meet the chimney. You shouldn't have a gap there. That's what the small o-ring in the top cap is for. It sounds like your o-ring is missing, the glass sides are too long, or the chimney is too short.

 

[Maestro]

I agree. I use a bottom filled Kayfun.

Every _____ing top filled Atty has leaked like crazy on me.

Once you've filled and sealed it, bottom fill or top fill becomes irrelevant. They both work on the same principle. HOWEVER, there is one important point about top fill. There should be flat spots on two sides on the top cap threads to allow air to get out while you're screwing it down. Not all clones have it. If you don't have it, you're pressurizing the tank and it will definitely leak. With the top fills, it's always best to open the juice control with the tank upside down after filling it. This allows any pressure to escape through the air holes.

 

[Two_Bears]

Yours must be built differently than mine, then. My top cap is one piece and the bore bevels to a smaller size below the drip tip. The drip tip doesn't even go down far enough to meet the chimney. You shouldn't have a gap there. That's what the small o-ring in the top cap is for. It sounds like your o-ring is missing, the glass sides are too long, or the chimney is too short.

I told you it was an authentic Mini V3

I furtheemore told you how it leaked because of a hair line crack and an O ring.

 

[Maestro]

I told you it was an authentic Mini V3

I furtheemore told you how it leaked because of a hair line crack and an O ring.

Suit yourself. If you're happy with it the way it is, then that's all that matters.

 

[Two_Bears]

Suit yourself. If you're happy with it the way it is, then that's all that matters.

I'm not happy about it. I sold the piece of garbage. A friend watched a review about the Mini V3 on You Tube and he just had to have one so i lost $25 on it. Better than the whole $104.

I showed him tge hair line around the central Shaft and told him it leaked unless the Juice flow was off. I said a thicker O ring may stop the leaking. Last i heard he was happy as a clam

Now i buy 1:1 clone first. If i like it i consider an authentic.

 

[Mada]

This issue is very weird ... and all explanations so far did not give me a reasonable cause.
KFL - Never leaks when laid down
KF 4 - Never leaks when laid down (top filling and JFC fully open)
KF mini V3 - Mine never leaks when laid down - same design as KF5 - Others reported leaking
KF V5 - Mine leaks when laid down. Tried all suggestions. It may not leak for a day or two, but then it leaks. Others reported it never leaks !!
Is there a quality control issues ? Is there a design issue with V5 ? BTW, I have all authentic.

 

[Two_Bears]

This issue is very weird ... and all explanations so far did not give me a reasonable cause.
KFL - Never leaks when laid down
KF 4 - Never leaks when laid down (top filling and JFC fully open)
KF mini V3 - Mine never leaks when laid down - same design as KF5 - Others reported leaking
KF V5 - Mine leaks when laid down. Tried all suggestions. It may not leak for a day or two, but then it leaks. Others reported it never leaks !!
Is there a quality control issues ? Is there a design issue with V5 ? BTW, I have all authentic.

Yep. Svoemesto has QC issues. After my last go around with KFMV3. I WOULD NEVER BUY ANOTHER SVOEMESTO PRODUCT.

 

[Carnage9270]

If it doesn't leak for a day or two, that's wicking. Some wicking (rayon for example) shrinks over time. If it was a vacuum issue, you'd notice it right away.

 

[Two_Bears]

If it doesn't leak for a day or two, that's wicking. Some wicking (rayon for example) shrinks over time. If it was a vacuum issue, you'd notice it right away.

Its not the wicking. If simply leaks because of a lack of full vacuum.

 

[Carnage9270]

Like I said, if it was a vacuum issue, it would be leaking right away. A vacuum can't turn itself on and off. It's either there or it isn't. To have it start 2 days after you build it makes no sense for a vacuum issue.

 

[Maestro]

Like I said, if it was a vacuum issue, it would be leaking right away. A vacuum can't turn itself on and off. It's either there or it isn't. To have it start 2 days after you build it makes no sense for a vacuum issue.

Ever have a tire take days to go flat?

 

[Carnage9270]

Ever have a tire take days to go flat?

Difference is a tire is inflated to a pressure. A vacuum has to be created by taking several pulls. If it never creates the vacuum, it should be leaking fairly soon after you fill it.

 

[Maestro]

The vacuum is created once you open the juice control. It's the weight of the liquid vs the air bubble at the top of the tank. If you dip a straw into the water and lift it out with your finger over the end, the water stays in the straw. You don't have to suck on it and create a vacuum.

If you start unscrewing the top cap, you'll see bubbles come up from the bottom of the tank. This is caused by creating greater suction at the top by backing off the top cap and you're sucking air in from the bottom. However, you've broken the seal and your tank will leak eventually. A slow leak takes time, but eventually causes a problem.

 

[DaveP]

In my experience, a vertical Kayfun seldom leaks as long as the top cap and tank o-rings are good. If you can't hold a wet finger over the air hole and create a vacuum it's going to leak out the air holes.

On the K5 you can close off juice feed when it's not in use. Otherwise, it's going to leak like any Kayfun in the same environment and conditions.

Mine generally don't leak unless I pocket carry in hot weather. Juice warming leads to expansion and dew around that air holes. The Tobeco K5 was no different. It's a good tank, but it's not perfect. I'm back on the V3.1 and the Lite Plus V2 for daily vapes and using the K5 here and there as I get used to it.

 

[Two_Bears]

In my experience, a vertical Kayfun seldom leaks as long as the top cap and tank o-rings are good. If you can't hold a wet finger over the air hole and create a vacuum it's going to leak out the air holes.

On the K5 you can close off juice feed when it's not in use. Otherwise, it's going to leak like any Kayfun in the same environment and conditions.

Mine generally don't leak unless I pocket carry in hot weather. Juice warming leads to expansion and dew around that air holes. The Tobeco K5 was no different. It's a good tank, but it's not perfect. I'm back on the V3.1 and the Lite Plus V2 for daily vapes and using the K5 here and there as I get used to it.

I pocket carry the Kayfun in my avatar on tge side. In 15-16 months vaping the little beastie i woukd say it has leaked 1 ml or less in Temperature from 45-117 degrees Fahrenheit.

My Kayfun Mini V3 leaked lime a sieve unless i closed the Juice Wells.

Was super happy Someone wanted it and paid me for it.