Tunze osmolator pump problem


Staff member
RC Mod
C'mon--winding a rubber band around the delivery line is the best and only way to make the delivery line seat in the 3155 Osmolator pump?

Is that IT? Or am I missing a part?


New member
Brs sells a reducer that lets you use a 1/4 tubing.

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It uses a metric hose. It's a little larger dia than standard air lines

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The change in hose size is “new”. My old pumps fit tight with RO tubing. Newer replacement pump does not. They should include some adapter to make sure it works in Metric and imperial out of the box.