KegLand Fermzilla Unitank Series User manual

Page 1of 6www.KegLand.com.au Last Updated 24/03/2020 4:30 PM
Fermzilla Leak Fix Instruction
Manual
(for Unitank and All Rounder models)

Fermzilla Leak Fix Instruction Manual
Page 2of 6www.KegLand.com.au Last Updated 24/03/2020 4:30 PM
Flat lid leak
Step 1. Identify exactly where the leak is occurring by performing a leak test on an empty Fermzilla.
Close the butterfly valve (if using a conical Fermzilla) and place the lubricated lid and lid collar on the
Fermzilla. Hand tighten the lid collar and then pressurise the Fermzilla to approximately 10 psi using
either CO2or compressed air.
A leak test can then be performed one of two way:
1. Spray or sponge detergent or stellarsan solution onto the lid of the Fermzilla making sure to
cover the entirety of the lid including underneath the lid collar, the entirety of the lid and
around the PET caps/carbonation caps. Look for the formation of bubbles indicating a leak.
2. Invert the Fermzilla and submerge the lid in a bucket of water, sink, bath or pool. Look for
any bubbles forming in the water indicating a leak.
If you identify a leak in the lid then follow the steps described below:
Step 2. Remove the lid from the Fermzilla and inspect the o-ring for any signs of damage including
cuts, burs or scratches. If the o-ring is damaged replace it with a new undamaged o-ring Part
KL14267. Also inspect the lid for any damage while the o-ring is removed. If the lid is damaged
replace with an undamaged lid Part KL11402.

Fermzilla Leak Fix Instruction Manual
Page 3of 6www.KegLand.com.au Last Updated 24/03/2020 4:30 PM
Step 3. Reseat the o-ring into the lid and generously lubricate the o-ring using a food-grade lubricant
such as Part KL07221.
Step 4. Hand-tighten the lid collar onto the Fermzilla. Make sure to not overtighten this lid collar as
this can result in distortion of the o-ring
Step 5. Perform another leak test.
Step 6. If the lid is still leaking make sure that the stainless-steel handles are not too tight. Loosen
these handles (or remove) and then perform another leak test. The handles should only be hand-
tight as too tight can result in distortion of the neck of the Fermzilla.
If you are still experiencing issues please send through a video to the email [e-mail]
showing where the leak is occurring (leak test) and photos of the condition of the lid and o-ring.
NOTE: It is advised to performs leak tests on the collection vessel (if using a conical Fermzilla) and
carbonation caps if they are attached. If using a conical Fermzilla and the collection vessel is not
attached it is also suggested to perform a leak test on the butterfly valve.

Fermzilla Leak Fix Instruction Manual
Page 4of 6www.KegLand.com.au Last Updated 24/03/2020 4:30 PM
Stainless-steel carbonation cap leak
It is important to not overtighten the stainless-steel carbonation caps onto the lid of the Fermzilla.
Overtightening can cause stripping of the PET threads on the lid. They should be hand-tightened
only.
Perform a leak test as described above.
Leaking from the base:
If the carbonation cap is leaking from the base of the carbonation cap then perform the following
steps:
Step 1. If a leak is identified then unscrew the carbonation cap and inspect the o-ring inside the
carbonation cap. If there are any signs of damage including cuts, burs or scratches then replace the
o-ring.
NOTE: If you determine that the o-ring is damaged you may need to replace it. We do not stock
replacement o-rings however, the o-rings designed for camlock fittings also fit the carbonation caps
Part KL07177.
Replace with camlock seal
Remove and inspect o-ring

Fermzilla Leak Fix Instruction Manual
Page 5of 6www.KegLand.com.au Last Updated 24/03/2020 4:30 PM
Damaged o-ring
Step 2. Lubricate the thread on the lid of the Fermzilla and then reseat the carbonation cap onto the
lid and hand tighten. Then perform another leak test.
Leaking from the top:
Step 1. Dissassemble the carbonation cap and inspect all o-rings for signs of damage.
Step 2. Replace any damaged o-rings and clean any build-up of protein or hop matter from inside the
the carbonation cap.
Step 3. Reassemble the carbonation cap and hand tighten onto the lid of the Fermzilla. Then perform
another leak test.
Gas bubbles in beer line from carbonation cap:
If gas bubbles are forming in your beer line then this may be an indication that the inner o-ring
shown below is damaged. This should be replaced with a new o-ring.
If you are still experiencing issues with the carbonation caps then please send through a video to the
email [e-mail] showing where the leak is occurring (leak test) and photos of the
condition of the carbonation cap and the o-rings.

Fermzilla Leak Fix Instruction Manual
Page 6of 6www.KegLand.com.au Last Updated 24/03/2020 4:30 PM
Collection vessel leak
It is important to lubricate the o-ring of the collection vessel well and not overtighten the vessel
onto the butterfly valve. Not lubricating the collection vessel can result in leaks and this coupled
with overtightening can result in the collection vessel being difficult to remove.
Step 1. Remove the collection vessel and inspect the o-ring for any signs of damage. Replace the o-
ring if it is damaged.
Step 2. Lubricate the o-ring and reseat it.
Step 3. Hand tighten the collection vessel onto the butterfly valve. There should be no thread
showing. If it still leaks after hand tightening then torque it another ¼ of a turn with the oil removal
tool.
Step 4. Perform a leak test.
Collection vessel overtightened and difficult to remove
If you have overtightened the collection vessel and the spigot collar is spinning preventing you from
removing the collection vessel then perform the following steps.
Step 1. Apply 5 psi to push the thread of the spigot further down.
Step 2. Tighten the spigot collar.
Step 3. Release the pressure by pulling the pressure relief valve.
Step 4. Rotate the collection vessel clockwise with the oil removal tool.
HINT: You can use a second oil removal to hold the spigot collar allowing you to apply more torque.
If you are still experiencing issues with the collection vessel then please email [e-mail]