Chillum-Finder
Drei Angaben, ein Ergebnis. Schliff wählen, Länge messen, Diffusor-Art festlegen — wir zeigen dir die exakte Variante.
1 Which joint does your pipe have?
No calipers at hand? Hold a 2 cent coin against the widest part of the ground joint. It measures 18.75 mm, which is almost exactly NS 18.8. An NS 14.5 is clearly narrower — narrower than a 1 cent coin. This is a rough check, not a precise measurement: when in doubt, compare with a part whose joint you already know.
2 How long does it need to be?
Lay the part flat and measure from the top edge of the ground joint to the bottom end of the downstem. The ground joint is the frosted cone that goes into the pipe. The socket above it — the opening the bowl sits in — does not count. That's the most common mistake.
Take a thin wooden skewer or a straw and push it into the socket at the same angle until it touches the bottom of the pipe. Mark it at the top edge of the socket — that's exactly where the top edge of the ground joint will sit later. Pull it out and measure from the mark to the tip. We subtract 1 cm of clearance from that value, otherwise the downstem will rest on the bottom.
Between two sizes? Always round down. A downstem that's a few millimetres short still works. One that's too long hits the bottom — and in the worst case cracks it. So we round down automatically.
3 With or without diffusion?
The water should later cover the bottom end by roughly 2 to 3 cm. Not sure how to measure? Drop us a line — we'll go through it with you.
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Where exactly do I start measuring?
At the top edge of the ground joint. That is the frosted, cone-shaped part that goes into the pipe. Measure from there down to the bottom end of the downstem. The socket above it, where the bowl sits later, does not count. That is the most common mistake.
My downstem is broken. How do I measure now?
Then you measure the pipe instead of the part. Push a thin wooden skewer into the socket at the same angle until it touches the bottom, and mark it at the top edge of the socket. Measure from that mark to the tip and subtract 1 cm. Otherwise the new downstem will rest on the bottom.
I am between two sizes. Round up or down?
Always round down. A downstem that is a few millimetres short works without any drawback. One that is too long hits the bottom, sits crooked in the joint and in the worst case cracks the base.
How do I tell whether I need NS 14.5 or NS 18.8?
NS refers to the diameter of the ground joint at its widest point, in millimetres. Without calipers, a 2 cent coin helps: it measures 18.75 mm, which is practically NS 18.8. An NS 14.5 is clearly narrower, narrower than a 1 cent coin. When in doubt, compare with a part whose joint you already know.
What is the difference between a diffuser and a plain downstem?
The plain downstem is an open tube without slits or holes. The smoke leaves the bottom end as one large bubble, so the draw is very easy. A diffuser has holes, slits or both and splits the smoke into many small bubbles. That cools and filters noticeably better, at the cost of a slightly tighter draw.
Will a downstem from another brand fit my pipe?
The ground joint is standardised, so an NS 18.8 will generally fit any NS 18.8 socket. The precision still varies: with a proper precision joint the part sits without play and without wobbling. Mixing manufacturers can lead to a tight or a loose fit.
How high should the water level be?
The bottom end should sit roughly 2 to 3 cm below the water. Less water cools poorly, more water makes the draw heavy and increases the risk of pulling water into the mouthpiece.