Question about 901 carts that came with my SD MK2

[leathermonkey7]

The 5 901 carts that came with my Screwdriver dont seem to fit quite right. Some are really loose and just slide off the atty, while 2 of them are really tight, and are hard to click in. I ordered some carts and spare attys from the TW site. I was hoping they may be built to tighter tolerances. Is this normal with 901 carts/attys? My 510 stuff always fits perfect. Of course, the screwdriver itself is perfect in every way 

[moog]

Leathermonkey.......this can be a problem.. ..however the tight carts do loosen up in time.... I think you can use the 501 carts on the 901 atomiser.....

[smokeless]

And the tight ones will eventually become as loose as the ones that just slide off. I make it a practice to order a few carts when I order juice, whether I need 'em or not.

[leathermonkey7]

Thanks for the responses. The 510 carts have been fitting so well on the 510 attys, time after time, that I have been washing them and refilling them with fluval when they get worn out, to save money. Sounds like once the 901 carts have been used a bit, and get loose, I should just chuck em and replace with a new one. Tried the 510 carts on the 901 atty. Some fit, some dont... grrr. I bought a 510 adapter for my SD, but perfer the 901 atty, because it doesnt seem to "cook" the fluval, (making the juice just puddle up on top, when topping off).  I suppose nothing is perfect 

[Phil A.]

I tend to just throw my cartridges away and use a new one when they get a bit tired - they're not particularly expensive and it's easier than messing about cleaning them! On my Titan, I used a new one every day, but with my SD it seems a bit gentler on the cartridges so I may change it every other day

[leathermonkey7]

Good point Phil 

[DaveHHH]

I've found that even new ones are often too loose, especially the ones that come with new atomisers, but that may be just coincidence. I've found a simple little cure. I held a small watch screwdriver over a gas flame (making sure the handle was wrapped of course) and dug it into each side of the cart. As it melts into the plastic, it puts a little ridge all round the indentation just enough to make the cart snug. this worked perfectly on my first attempt. Others may have done this but I haven't found it on the forum anywhere

[smokeless]

The carts that came with my MKII were all to fat to be seated, although they fit snug on my Titans.

[moog]

I've found that even new ones are often too loose, especially the ones that come with new atomisers, but that may be just coincidence. I've found a simple little cure. I held a small watch screwdriver over a gas flame (making sure the handle was wrapped of course) and dug it into each side of the cart. As it melts into the plastic, it puts a little ridge all round the indentation just enough to make the cart snug. this worked perfectly on my first attempt. Others may have done this but I haven't found it on the forum anywhere

Evo carts used to come loose after awhile, so we used to heat up a pin and score the inside of the cart...made them a tight fit again....

[Menox]

I noticed this too with the 901 carts.  The pin trick should work good.  I've never tried it.  I've done the needle nose pliers and bent the edge a little so it will fit snug without falling out.

[StevieD]

There is also the Basic Pliers Mod.... Just give the end of the loose cart a squeeze with a pair of pliers to SLIGHTLY deform it off the round and then it should fit snugly.

[DaveHHH]

There is also the Basic Pliers Mod.... Just give the end of the loose cart a squeeze with a pair of pliers to SLIGHTLY deform it off the round and then it should fit snugly.

now why didn't I think of that;)

[StevieD]

LOL DaveHHH, I always prefer simple and non technical if possible. Perhaps that's why I love my SD so much?