Fermzilla All-Rounder Starter Kit Instruction Manual
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7. StellarSan can be left in the vessel until the next fermentation when it can be
emptied and your wort added.
Cleaning the Pressure Relief Valve (RPV)
It is important to regularly clean the PRV to ensure that no beer has dried onto the PRV for
example from a very active fermentation or from moving the all-rounder. If wort or beer has
dried on to the PRV it can result in the spring within the PRV not opening when required if
the pressure in the vessel gets above 35 psi.
To clean the PRV simply unscrew it from the lid and soak in StellarClean for 30 minutes, then
rinse and soak in StellarSan or spray the internal surface with Super Kill Ethyl sanitiser spray.
An easy way to add cleaning the PRV to your cleaning regime is to simply remove the PRV
and place it into the cleaning/sanitising solution in the FermZilla.
Cleaning a BlowTie Spunding Valve (If applicable)
If fermenting under pressure and fermentation has been particularly active and krausen or
beer has entered the BlowTie Spunding Valve you will need to disassemble the BlowTie and
clean it to ensure that it operates correctly and releases pressure above the set pressure.
Follow these steps to disassemble and clean a BlowTie Spunding Valve:
1. Completely remove the yellow adjustment knob and spring.
2. Unscrew the four large screws on the face of the Blowtie Spunding Valve and the
two small screws on the housing of the integrated pressure gauge.
3. Remove the integrated pressure gauge housing and the integrated pressure gauge
by gently pulling up on the dial.
4. Remove the face of the BlowTie Spunding Valve.
5. Remove the diaphragm assembly.
6. Remove the collets on the duotight fittings.
7. Remove the o-rings within the duotight fittings.
8. Soak all components in StellarClean solution for 30 minutes and then reassemble.
BlowTie Spunding Valve Breakdown Cleaning Video
