Posted Sat Mar 29, 2014, 2:58pm Subject: Re: Knock box bar
When mine needed replacing, I went to the local hardware store and got a piece of nylon tubing with an ID the right size. It's clear, but that doesn't bother me. It is also much more durable than rubber and still protects the basket from the metal bar.
Dana Leighton - Espresso hack and CoffeeGeek moderator
skydragondave Senior Member Joined: 18 Feb 2013 Posts: 167 Location: Ontario, Canada Expertise: Professional
Espresso: Commercial Only Grinder: Commercial Only Roaster: Has Garanti HG5
Posted Sat Mar 29, 2014, 4:32pm Subject: Re: Knock box bar
You can also go to a specialty hydraulics shop and request the correct ID hydraulic suction hose, it is reinforced with nylon braiding to prevent it collapsing when drawing high volume or velocity. Some mfrs of knockboxes use this hose off the hop, and leave the white ink markings right on it to give you the specs.
Posted Mon Mar 31, 2014, 1:54pm Subject: Re: Knock box bar
When mine needed replacing, I went to the local hardware store and got a piece of nylon tubing with an ID the right size....It is also much more durable than rubber and still protects the basket from the metal bar.
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