Blow-off setup ok?

[Greg B]

Hello all

I've just moved from an FV in a tub of water with an aquarium heater to a fridge with a tube heater.

I kicked off a brew yesterday but as there was not enough space above the FV in the fridge to accommodate the usual airlock I use, I read up and opted for a blow-off tube instead.

Quick question, looking at the photo, have I set it up OK?

I cut the bottom of the airlock off, slipped a syphon tube over the top, pushed it into the lid of the FV, with the other end in a plastic water bottle filled to the red line. There's some blutak around the tube on the bottle lid.

There's definitely some activity and if I open the fridge door I can see regular constant bubbling in the water bottle.

Have I cocked anything up?

Cheers

Greg

 

[Chippy_Tea]

That looks fine to me the only thing i can see that may be a problem is it looks like you have sealed the pipe in the screw top on the bottle, you need to leave a small gap for the CO2 to escape.

 

[Greg B]

That looks fine to me the only thing i can see that may be a problem is it looks like you have sealed the pipe in the screw top on the bottle, you need to leave a small gap for the CO2 to escape.

Thanks. That makes sense.

I've also just realised that the liquid in the bottle is just water from the hot tap. I think it should've been something a little more sanitised. Should I add some suresan to it or replace with booked water?

 

[Chippy_Tea]

The fluid shouldn't get up the tube into your brew so it's not going to infect it, I wouldn't worry.

 

[Greg B]

The fluid shouldn't get up the tube into your brew so it's not going to infect it, I wouldn't worry.

Thanks.

Inbetween your posts I'd just added a little suresan and reduced the level of water to about 3cm. Still bubbling away nicely

 

[Gerryjo]

Looks ok but as @Chippy_Tea suggests open the lid or just remove it altogether.

 

[Greg B]

Looks ok but as @Chippy_Tea suggests open the lid or just remove it altogether.

OK, thanks guys

 

[Edison]

Looks good. Personally I use Star San in the bottle, I have had the water suck up the blow off when cold crashing or lowering the temperature significantly once CO2 production has stopped.

 

[Greg B]

Looks good. Personally I use Star San in the bottle, I have had the water suck up the blow off when cold crashing or lowering the temperature significantly once CO2 production has stopped.

Thanks. I might cold crash so useful to know.